A spin-off of Kaijuu Booska, a famous children's sitcom, taking place 70 years after the original story and features Tonda Daisaku's granchild, Koosaku, as the main character. In the past, Booska and Chamegon set off into the cosmos to find new energy for the earth. They said they would come back in 20 years, but they've never returned… Then, after many years have passed and people have forgotten about Booska and Chamegon, a miracle occurs! When monster Booska returns to the earth, he begins a strange life together with Koosaku, a genius inventor who is a high school student.

A 4-panel slice-of-life story about four schoolboys collaborate to draw BL manga!

1. **Toarui Ichi EROICA Fan no Tsubuyaki...** (とあるいちEROICAファンのつぶやき…) \[Ryouko Shitou\] 2. **Buchou Tetsuno Klaus** (部長鉄野クラウス) \[Miwa Sakai\] 3. **Denwa no Mondai** (電話の問題) \[Maya Mineo\] 4. **Lawrence yori Ai wo Komete 20XX** (ロレンスより愛をこめて20XX) \[Kanako Nanamaki\] 5. **Bluff pro yori Ai wo Komete** (ブラフプロより愛をこめて) \[Michiyo Akaishi\] 6. **Uruwashi no Eroica yori Ai wo Komete** (薔薇の伯爵に愛をこめて) \[Seika Nakayama\] 7-9. **Son Goku yori Ai wo Komete** (孫悟空より愛をこめて) \[Tomo Aoki\] 10. **Seitokai yori Ai wo Komete** (生徒会より愛をこめて) \[Yukiko Toono\] 11. **Kita Mita Katta! 20XX Cyber Edition** (来た見た勝った‼︎ 20XX Cyber Edition) \[Yayoi Ogawa\] 12. **Oshiire no Takaramono** (押し入れの宝物) \[Atsuko Shima\] 13. **Shiritsu Eroica Hoikuen** (私立エロイカ保育園) \[Lemon Haruna\] 14. **Gogh Satsujin Jiken** (ゴッホ殺人事件) \[Moto Hagio\] 15 **Eroica yori Ai wo Komete Gokujou Ai wo Komete ♡♡♡♡** (エロイカより愛をこめて極上愛をこめて♡♡♡♡) \[Miyuki Takahashi\] 16. **Nantsuttemo Yappari Eroica** (なんつってもやっぱりエロイカ) \[Waki Yamato\] 17. **Haruka Narukana Arcadia** (遥かなるかなアルカディア) \[Honda\] 18. **Fake yori Ai wo Komete** (フェイクより愛をこめて) \[Kyouko Shitou\] 19. **Monogatari ga Hajimaranai** (物語が始まらない) \[Shouko Hamada\] 20 **Shousa yori Ai wo Komete** (少佐より愛をこめて) \[Naoki Urasawa\] 21. **Hanafuru Yakata yori Ai wo Komete** (花降る館より愛をこめて) \[Chika Shiomi\] 22. **Eberbach to Watashi** (エーベルバッハと私) \[Takeshi Nogami\] 23. **1980's no Shougakusei yori Ai wo Komete** (1980'sの小学生より愛をこめて) \[Moyoco Anno\] 24. **Bankara-san ga Tooru** (バンカラさんが通る) \[Haru Yamamura\] 25. **Saint Klaus no Okurimono** (聖クラウスの贈りもの) \[Noriko Nagano\] 26. **Nihon yori Ai wo Komete** (日本より愛をこめて) \[Toshie Kihara\] 27. **Ikinari Nihon Mukashibanashi** (いきなり日本昔ばなし) \[Yasuko Aoike\]

The duke of his engagement partner has multiple personalities!? The opening of a harem romantic comedy with one partner! Alma decided to negotiate a match with the duke's family. There is a reason why my engagement partner is a surprisingly good person to talk to! However, the next moment he was proposed, his personality became a "different person". What will happen to this matchmaking!?

After dying in our world, Yae is reborn into a strange country called Izumo, which resembles ancient Japan, except for the fact that the supernatural is commonplace. When she is attacked by a terrifying monster called a shade, Yae has no choice but to release Arai, a golden tiger and former god, from his seal. In no time, the bossy tiger has her helping to find his brother, Sui, but it turns out that Sui has fallen ill and will soon become a monster himself. Arai, however, thinks Yae is just the person to heal his afflicted sibling… Does Yae really have what it takes to be doctor to a god? (Source: Yen Press)

I will definitely become stronger to save my precious family! Toba Akito is an elementary school student who is not as good at sports, studying, or anything else. One day, due to his own carelessness, his beloved younger sister is in danger of death... At the moment he despairs at his own powerlessness, the goddess who designed the human race appears and tells him that she made him a "dropout" due to her mistake... However, the goddess takes him to another world where he can definitely become stronger through effort and experience--!? "I will become strong in the other world. And I will save my precious family!"

Hibiki was a female high school student who was suddenly summoned to another world during her spring break. She was sent to a ruined world called “Evelier” by an existence named [Fate]. The knight Louie whom Hibiki saved is its only survivor, and he intends to fight alongside Hibiki, but…!?

Chun-Li, who can predict people's deaths, has been oppressed by her family for being cursed. One day, she is married to Emperor Seiran, who is rumored to cause those around him to die one after another. "I don't mind dying for Chun-Li," her own father thought, so he forced her into the harem as a "sacrifice." Chun-Li thought she could die at any time, but Seiran, who learned of Chun-Li's ability to predict death, became interested in her. (Source: Starts Shuppan, translated)

"Marry me, Yukio. Be my wife, on this bed of flowers." Yukio is a human apothecary, living in the world of the youkai. One day, her ex-husband, the eight-tailed white fox Shiratsuki, shows up at her doorstep and asked her to get back together with him…? What? They had divorced after only a few months into an arranged marriage, without any chance to date or getting to know each other… An fantasy romance between an apothecary girl and a great kitsune lord. (Source: Iris, translated)

The daughter of the Dites Province's Duke, Migliana, had enjoyed her previous life in modern Japan. However, to despite her present status, she finds life in her present world very inconvenient. Especially, the lack of BL! So she seeks to reform to province's culture to achieve a comfortable life and moe! Eventually, to marry into another family, the disinherited former crown prince, Matisa, arrived...?! *Note: The author passed away in a traffic accident in August 2017, leaving the novel incomplete. Vol 8 of the light novel was the last release, in June 2017. Vol 8's synopsis suggests the story was still meant to continue.*