
Japanese lingerie maker aims provide players with sweet, possibly spicy dreams.
In a recent survey by Wacoal, one of Japan’s largest lingerie companies, more than 20 percent of Japanese women said that they have trouble sleeping because their breasts move about when they lie down in bed. In order to provide their chests with comfortable support, Wacoal offers a model called the night up bra, designed to gently cup the breasts during sleep, and now that piece of intimate apparel has inspired a new romance game starring a cast of handsome anime-style men.
Karemin gets its name by combining the Japanese words for “boyfriend” (kareshi) and “sleep” (suimin). The player takes the role of a tired women who attends a seminar on how to get a better night’s sleep, where she meets a team of four young instructors and their equally attractive manager. Together, they offer advice on relaxing pre-sleep rituals, help you select bras and pajamas, virtually lie down next to you and chat as she you drift off to sleep, and wake you up in the morning.
▼ Karemin’s sexy-voiced trailer
The game’s cast is made up of:
▼ Asahi Kawahara (left), a younger brother-type who’s nonetheless willing to pamper the player, and Yuya Yoshida (right), the player’s childhood friend who also has a strong mothering instinct
▼ Wacoal lingerie designer Kei Kimura (left) and pop idol Miyabi Sayo (right)
▼ And finally, mature manager Hayato Shinonome, who’s actually got a sweet tooth and can’t stand bitter green peppers.
Whether spending time with the game’s good-looking cast before bedtime will help players drift easily into slumber or get their hearts racing enough to keep them wide awake will likely vary by individual user, and if you’re curious to see what your own personal results are, the game is available as a free download for Android (here) and iOS devices (here).
Sources: Karemin, PR Times
Top image: PR Times
Insert images: Google Play
[ Read in Japanese ]





New smartphone game allows you to date the man, monkey, or dessert of your dreams
Disney is making an anime-style game where you meet handsome villain boys
New dating simulator lets players romance anime-style girls in North Korea【Video】
I Hate You: Japan’s anime-style mobile romance game starring girls who will never, ever love you
Free anime-style adult video game being given away to keep people inside in virus outbreak China
Tokyo’s life-size Gundam anime mecha statue will be removed this summer
Hundreds of rose bushes in bloom at Tokyo’s off-the-beaten-path, next-to-the-tracks flower street
Ichiraku Ramen-inspired ramen sets from Naruto anime pay homage to Naruto, Sasuke, and Sakura
Studio Ghibli’s president is leaving the company. Will it change how they make anime?
Let’s hike a Japanese mountain (that isn’t Mt. Fuji) – Mt. Tsukuba[Photos]
The top 12 incomprehensible school rules, as chosen by high school students
Baskin-Robbins Japan’s 2026 popularity poll results are in and the champion flavor is crowned
7-Eleven Japan now sells canned water, but does funky packaging mean funky flavor?[Taste test]
161-year-old Kyoto confectionary maker releases new edible Pokémon lineup
Choc mint ice cream season hits Japan with a spectacular drinkable ice cream from Tully’s
Starbucks Japan releases two new “chunky” drinks… and matching gel designs for our nails
7-Eleven Japan now has ramen machines…but only at 41 stores
Mt. Fuji hot spring inn gets even more beautiful after dark with Firefly Festival
7-Eleven Japan is releasing Greedy chocolate chip and whipped cream sandwiches
Don’t miss the Tokyo Tower City Light Fantasia ~Summer Landscape 2026~ event during your travels
Japan’s 5.3 million beautiful Hitachi Nemophila flowers are now in full bloom[Photos]
The average age of Japan’s hikikomori shut-ins is getting older, survey shows
Japan enters Golden Week vacation period, survey shows one in three plan to ride it out at home
New Kyoto Converse sneakers celebrate Japan with traditional kimono fabrics for your feet
Brand-new Pokémon manhole covers coming to help the recovery of a disaster-stricken part of Japan
Japan’s awesomely beautiful Alpen Route snow corridor is now open
Japan’s new Pokémon jackets give you the look and powers of the Kanto starter trio
Move aside, convenience store egg sando – there’s a better version of the iconic sandwich in Japan
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
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
Japan reportedly adding Japanese language skill requirement to most common foreigner work visa
Hunky Japanese video game character huggy pillow lets you peel the clothes off his body
Historical painters including Michelangelo, Hokusai become hot anime men in artsy video game
Fine art painters become fine anime boys in new romance video game Palette Parade