Turns out illustrator has some first-hand experience with her main mammary matter.
Nishizawa 5 Millimeter draws boobs. Granted, that’s not the only thing the artist draws, as said boobs are components of cute anime-style girls. Nonetheless, there’s a particularly loving care given to the characters’ chest areas.
For example, Nishizawa recently contributed illustrations for an art collection titled #Jujoshi. The cover’s text proudly identifies it as “A boob book for readers of all ages” and “A selection of boob illustrations with social media-style photos as the theme.”
▼ #Jujoshi
ありがとうございます!メロンブックスさんに置いてあります。店舗在庫をここから確認してから向かえば、確実だと思います!https://t.co/OymSLMP3eH pic.twitter.com/0pwZfIVr0F
— 西沢5㍉ (@wanwangomigomi) November 29, 2018
Nishizawa also produced this teasing schoolgirl who’s lifting up her skirt while coyly saying, “If I called out right now, what would happen to you, Teacher?”…
https://twitter.com/wanwangomigomi/status/1077202333216301056…and this Twitter manga, in which an already buxom girl looks forward to her boyfriend getting her pregnant after she reads on the Internet that women’s bust sizes increase during pregnancy.
▼ Nishizawa (who goes by @wanwangomigomi on Twitter) followed up with a poll for flowers asking them what their favorite cup size is for a woman’s chest.
https://twitter.com/wanwangomigomi/status/1011907876451803136With so much of Nishizawa’s output gravitating towards boobs, many fans imagined the artist must be a man with a particularly advanced appreciation for the female torso. However, the illustrator recently posed with an upcoming book and tweeted the picture, which revealed that…
https://twitter.com/wanwangomigomi/status/1098537039065079813…Nishizawa is herself an attractive young woman with a noticeably large bust.
The gap between the artist’s appearance in fans’ imagination and in real life came as a shock to many of them, who left comments such as:
“Wait…you’re a woman? And such a beautiful one?”
“I’d always thought you were a guy…”
“You look so much like the character on the cover of your new book!”
“Now I’ve got to buy it!”
While this was Nishizawa’s first time to post a picture of herself through her Twitter account, some fans had actually seen the artist before, just without realizing it. Most of Nishizawa’s output has been in the self-published dojinshi category, and she’s sold her works in-person at the twice-a-year Comiket convention in Tokyo. However, it’s not uncommon for artists to hire attractive women to help promote their products at the event, either doing cosplay or manning the sales counter, and at least one commenter assumed that’s who Nishizawa was. “So that beautiful girl at your booth at Comiket was you, the artist!” the fan tweeted. “You were so nice to me when I made my purchase.”
In retrospect, there was a hint as to Nishizawa’s lady-ness. As some of you may remember, almost exactly a year ago one of her Twitter illustrations made a splash by depicting nine ways having large breasts affects a woman’s day-to-day lifestyle. While they were accompanied by cute and sexy drawings, the points they raised, such as trouble shopping for dresses and stiff shoulders, spoke to a fairly comprehensive understanding of what it’s like living with a big bust, and it turns out those didn’t come from third-person observation, but from first-person experience.
https://twitter.com/wanwangomigomi/status/1094030996398256128By the way, if you’re curious about the book Nishizawa is holding up in her photo, it’s a copy of Watashi no Hajimete, Kimi ni Agemasu, or “I Give My First Time to You.” A manga anthology of short and sexy stories, such as a cosplayer trying to convince a manga artist to lose his virginity by sleeping with her, it’s Nishizawa’s first solo project as both author and illustrator, and can be ordered here from Amazon in both physical and digital versions.
Source: Twitter/@wanwangomigomi via Jin

Famous manga artist gives out advice on how to draw breasts to celebrate Boob Day
Advanced otaku: How to make a still-illustration manga girl’s boobs jiggle 【Video】
Japan’s number-one cosplayer Enako reveals shocking amount she earns from manga gravure modeling
Manga artist shares a genius-level trick to take the headache out of drawing interior scenes
Komachi Shokudo: Japanese mum’s-style cooking for breakfast, lunch and dinner in Tokyo
Studio Ghibli releases Catbus pullback keychain that runs like the anime character
The top 10 graduation songs in Japan as chosen by current Japanese high school students
Giant pipe mysteriously rises up through street in downtown Osaka
Is this Japan’s most extreme cherry blossom viewing? Leap, cycle and climb through 2,500 sakura
Is Daiso’s microwave Japanese rolled omelet maker worth your time and money? [Taste test]
Creator of Rurouni Kenshin anime/manga admits to possession of child pornography
Taste-testing Japan’s real-world Dragon Balls and Senzu Beans at Marugame Seimen
Starbucks Japan offers special sakura picnics at Reserve Roastery Tokyo beside Meguro River
Let’s eat some official Evangelion emergency rations!【Taste test】
Nine great places to see spring flowers in Japan, as chosen by travelers (with almost no sakura)
Starbucks Japan releases a new Cream Puff Frappuccino for a limited time
Starbucks Japan unveils new sakura cherry blossom collection for hanami season 2026
Silicone testicle covers banned from Japanese sauna following cups being left behind and on shelves
Starbucks Japan opens new cafe and art gallery in top Tokyo tourist neighbourhood
Japanese government planning higher ticket prices for foreign tourists at Tokyo National Museum
Is Japan’s Crab-shaped Cup Ramen Timer worth the hype?
Studio Ghibli now sells Ursula’s backpack from Kiki’s Delivery Service at its anime shop in Japan
Pizza Hut Japan teams up with creator of one of the country’s best kinds of ramen for ramen pizza
Starbucks Japan releases new sakura goods and drinkware for cherry blossom season 2026
Japan’s newest Shinkansen has no seats…or passengers [Video]
Foreigners accounting for over 80 percent of off-course skiers needing rescue in Japan’s Hokkaido
Super-salty pizza sends six kids to the hospital in Japan, linguistics blamed
Starbucks Japan unveils new sakura Frappuccino for cherry blossom season 2026
Foreign tourists in Japan will get free Shinkansen tickets to promote regional tourism
The 10 most annoying things foreign tourists do on Japanese trains, according to locals
Survey asks foreign tourists what bothered them in Japan, more than half gave same answer
Japan’s human washing machines will go on sale to general public, demos to be held in Tokyo
Starbucks Japan releases new drinkware and goods for Valentine’s Day
We deeply regret going into this tunnel on our walk in the mountains of Japan
Studio Ghibli releases Kodama forest spirits from Princess Mononoke to light up your home
Major Japanese hotel chain says reservations via overseas booking sites may not be valid
Put sesame oil in your coffee? Japanese maker says it’s the best way to start your day【Taste test】
No more using real katana for tourism activities, Japan’s National Police Agency says
Zodiac sign lingerie range inspired by Japanese anime artist reveals final designs
Dojinshi manga artist makes fan’s day with special promise for the next two years【Manga】
Japanese fan artist kid redraws entire collected volume of Attack on Titan manga【Pics】
Beautiful woman stuns Japanese Internet, no one will ever know her name because she’s a painting
What if One Piece was a girls’ comic? Shojo manga artist produces character redesign【Pics】
Manga artist fails to sell a single book at Comiket, still considers the day a major success
Anime artist pros draw Wonder Woman to celebrate film’s Japanese opening【Art】
One-Punch Man artist shares 10-year-old daughter’s drawings online
Manga artist Kentaro Yabuki proves his godly skills with improvised drawings at comic exposition
Beautiful Japanese martial artist recreates fighting video game moves in the real world【Video】