
With its most famous idol groups being popular with both young girls and middle-aged men, Japan’s idol culture is a curious thing, There’s a juxtaposition at work here, with the young girls in these groups cultivating an image of purity and innocence while at the same time prancing around in bikinis and mini-skirts that so bewitch adult males.
Haruka Momokawa, one of Japan’s hottest new idols, has got this art down to a T, putting her adorably youthful look to coquettish use despite already being the ripe old age of 20.
Despite being leader of the idol group Ru:Run, which formed just at the start of this year, Momokawa is relatively new to the idol scene. Even so, although her youthful good looks might lead you to think otherwise, she’s actually just turned 20 years old!
この生誕祭のタオル超かわいいよね♡最近、自分の絵を描いてもらえることが多くて本当に嬉しい♡百晴 pic.twitter.com/dT1WwnBvK4
— 百川晴香(リストバンド) (@momokawaharuka) November 6, 2015
Her latest DVD, Last Teen ~Precious Memories~, closes the door on Momokawa’s last summer as a teenager, depicting the idol just before her birthday on November 1, frolicking under the sun in bikinis and swimsuits.
【拡散希望】
— 百川晴香(リストバンド) (@momokawaharuka) October 10, 2015
私の10代最後のDVD「ラストティーン」が今日(10/10)発売されました!と、いうことで10/18(日)にDVD発売記念イベントがあります!今日から整理券が配布されてますのでゲットしてください♪百晴 pic.twitter.com/HV1tmL8WDO
Her appeal is described as “loli-cute” by fans, and with her dimples and petite body she seems to be in high demand, with multiple photo books, DVDs and magazine appearances to her name already.
代々木でのスポーツ・オブ・ハート楽しかったo(`ω´ )oたくさんお話しできてよかった♪みんな今日からRu:Nerだぞっ♡うひ(笑)これからもよろしくお願いします♡百晴 pic.twitter.com/ReIt6rWAdq
— 百川晴香(リストバンド) (@momokawaharuka) October 17, 2015
While these kinds of photo books and DVDs may seem quite sleazy to a Western audience, they’re standard fare for idols here in Japan to issue. There’s a whole range of idols to cater to every taste, from petite and youthful like this fresh-faced 20-year-old, to fuller-sized girls and ripped men, and companies are keen to cash in on them as long as there’s an audience to buy up their goods.
【告知】
— 百川晴香(リストバンド) (@momokawaharuka) October 13, 2015
今日発売されたヤングチャンピオンに私のグラビアが載ってます( ´ ▽ ` )ノ是非見てください♪百晴 pic.twitter.com/1Sbm7LKivO
The key to many idols’ success is a carefully calculated brand of sexualized innocence, which Haruka expertly demonstrates in a Pocky Day video clip posted to her Twitter account.
ただポッキーを食べる。百晴
— 百川晴香(リストバンド) (@momokawaharuka) November 11, 2015
#ポッキーの日 pic.twitter.com/NJDLqNbb8s
But she can do more than just pose! Recently she has also become a regular actress on the Ultraman series airing on TV Tokyo, helping protect the Earth as gorgeous scientist Rui Takada. Ultraman’s birthplace is the M78 nebula which is 3 million light years away from Earth, leading some hardcore fans to start calling Momokawa “the most beautiful woman in 3 million light years”.
「大人のウルトラマンシリーズ大図鑑」いただきました( ´ ▽ ` )ノ私も載ってるの!まもるんと一緒にインタビューしてもらってます♡みてね!百晴
— 百川晴香(リストバンド) (@momokawaharuka) October 14, 2015
#ウルトラマンX #ルイルイ pic.twitter.com/Tim7RMAj0A
Going forward, Momokawa looks set to move on from repetitive bikini photo shoots, with her profile set to skyrocket following her appearance in the Ultraman X movie next year. You can keep an eye on her via her Twitter or Instagram—go quickly now so that you can tell everyone you liked her before she was mainstream cool.
Source: Biglobe and Twitter
Header Image: @momokawaharuka on Twitter

Japanese swimsuit models and cosplayers celebrate Bikini Day 2017【Photos】
Japanese gravure idol has a fishy secret to share in her bathroom 【Photos】
Cosplayers and models share selfies to celebrate Bikini Day in Japan
Japanese models and Internet users celebrate Twintail Day 2017【Photos】
Starbucks Japan releases new My Fruit³ Frappuccino at only 34 stores around the country
Studio Ghibli releases the My Neighbour Totoro tea caddy, with a magical self-closing lid
7-Eleven Japan releases a crazy new viral sandwich: Chocolate Sprinkles and Whipped Cream
Public restrooms in Osaka to get in-stall video screens with ads
Tokyo government organizes food truck event to clear out delinquent/homeless teen gathering area
Japan now has a “for foreign tourists only” Mt. Fuji sightseeing train[Video]
Travel tip: Fukuoka has a great luggage delivery service that’s cheaper than a coin locker
Genki Sudo returns in Shibuya-version of hit World Order song【Video】
Godiva now makes tofu in Japan, and sakura chocolate tofu too![Taste test]
7-Eleven Japan’s latest spicy curry promises to take our voice away, but does it deliver?
Japanese onsen egg maker from 100-yen store Daiso needs to be on your shopping list
Cherry blossoms begin blooming in Japan with record-early starts for sakura season
Nine amazing off-the-beaten-path cherry blossom spots in Japan for yaezakura and shidarezakura
Stunning central Japan wisteria festival is like a purple fantasy straight out of a Ghibli movie
When will the cherry blossoms reach full bloom in Japan this year?[Forecast]
Studio Ghibli unveils new Rollbahn notebook in honour of Howl’s Moving Castle
Studio Ghibli adds new anime tumblers to its cool streetwear brand in Japan
Universal Studios’ Sailor Moon theme park attraction is finally coming to America
Starbucks Japan unveils new sakura cherry blossom collection for hanami season 2026
Train station platform ramen store closes its doors on half a century of history in Tokyo
Studio Ghibli releases Catbus pullback keychain that runs like the anime character
Nine great places to see spring flowers in Japan, as chosen by travelers (with almost no sakura)
Starbucks Japan releases first-ever Hinamatsuri Girls’ Day Frappuccino
Studio Ghibli adds new Mother’s Day gift sets to its anime collection in Japan
Virtual idol Hatsune Miku redesigned with look that adds new elements and brings back old ones
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
Starbucks Japan releases new sakura goods and drinkware for cherry blossom season 2026
Japan’s newest Shinkansen has no seats…or passengers [Video]
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
Japanese idol’s attempt at taking a “cute” photo backfires in terrifying way
Japan’s most beautiful idol singer faces, with AKB48 barely cracking the top 10【Survey】
Now you can own the eyes of “once in a millennium” idol Kanna Hashimoto
Japanese idol group member misses performance after misreading train station kanji
Lesbian idols’ confession of love prompts veteran to say “Idol romance restrictions are shit”
Japanese idol asks fans to marry her, provided they can pay her 400,000 yen (US$3,550) a month
Otaku dances like a Japanese idol in front of J-Pop idol at live event in Tokyo【Video】
Idol singer quitting group because otaku that show up to their concerts are “nasty”