One summer day, kindhearted high school student Kaisei finds a mysterious young man collapsed on the street and carries him to his dorm room. The young man ends up staying there, but he refuses to reveal anything about himself, so the dorm’s residents dub him “Nora,” a name that means “Stray.” As Kaisei and Nora spend more time together, Kaisei begins to understand why Nora ran away from home. In turn, Kaisei, who always keeps a distance from others, opens up about his own bottled-up pain and regret. (Source: Seven Seas Entertainment)

The year is 2307 A.D. Although fossil fuels have been depleted, humanity has obtained a new source of energy to replace them in the form of a large-scale solar power generation system based on three huge orbital elevators. However, the benefits of this system are available only to a handful of major powers and their allies. The three orbital elevators belong to three superpower blocs. These are the Union, led by the United States of America; the Human Reform League, led by China, Russia, and India; and the AEU, led by Europe. These superpower blocs continue to play a grand zero-sum game for the sake of their own prestige and prosperity. In this world of never-ending conflict, a private armed organization appears, dedicated to the elimination of war through armed force. Its name is Celestial Being, and it is in possession of "Gundam" mobile suits. With these Gundams, it begins armed intervention into all acts of war. Source: TRSI

In the year 20XX, the collapse of North Korea is imminent. Japan will be involved whether or not it chooses to be. The government, therefore,​ decides to send a secret mission of JSDF soldiers to capture North Korea's nuclear bombs, codenamed Omega. They become more involved in the Korean war than they hoped to be...

Kindaichi (frequently with best-bud, Miyuki) travels to various places where a murder has taken place, typically involving ghosts, curses, myths and folklore of significant events from the distant past, and solves the mystery using ingenious deductions of curious clues and his cool magic.

1. **Kigi no Yukue** (木々のゆくえ) Juri has always been saying to herself that she has done everything that she wanted to do, and has lived to her own satisfaction. Plus, she's always been skipping class and coming in late in the mornings, only to be confronted by her class rep, Yoh. Aware of her own situation, she knows that she shouldn't leave any remaining desires and feelings behind... 2. **Santa ni Naritai** (サンタになりたい; I Want to Become Santa) 3. **Koe ni Naru** (声になる)

A compilation of additional tips written by Ryukishi07 outside of the games. Several of the stories are humorous in tone, but the more serious ones may be considered canon.

Ken has never been good with words. However, he learned to overcome his shyness when his classmate Takumasa approached him with an exchange diary. In high school, problems start to arise in Ken's and Takumasa's relationship as they face their feelings, future paths and possible separation.

I once had a childhood friend who was a cute angel. However, when we met again, many years later, she had become a flamboyant gal. A yuri story between two childhood friends. (Source: Kadokawa, translated) *Note: Originally self-published, it was collected for a commercial volume release on 2024-09-26.*

Second-year middle school student Ayumu Kurihara changes classes and is seated next to the beautiful but strange Misuzu Tsukishima who dislikes boys. Mizusu can't get close to other people, but after being moved by Ayumu's sweet, honest personality she begins to open up to her little by little. Ayumu too is captivated by the awkwardly delicate Mizusu and the two of them become close.