An anthology comic of Fate/Grand Order by various mangaka.

*Note: The series was originally titled "Hai Agaritai Kimi e" for the first two chapters.*

An anthology comic of Persona 3 by various mangaka.

Kawano Hatsuyuki is a third-year student, one of the rare delinquents at his school. He reluctantly shows up in order to fulfill his graduation requirements. It's December, and the first snow of the year has fallen. In one lot of the old town, Hatsuyuki encounters a beautiful girl wearing a white dress. She's wandering the streets under the falling snow, in search of a rabbit. A few days later, the girl in the dress - Sakura - transfers into his school. To take Hatsuyuki along towards the last winter. With the turn of the four seasons, 1095 days come to an end. Soon winter will pass, and spring will arrive. Embracing memories of snow that never accumulated, the youth stands perfectly still. From the first snow (Hatsuyuki) to the cherry blossoms (Sakura), congratulations on your graduation. Source: https://vndb.org/v7302

A dead body with a burned face was found in a park in Tokyo - Miyuki Saeki of the Metropolitan Police Department investigates the incident, but during that time, more incidents occur one after another. And in the shadows there is a mysterious auction that determines the method of killing - justice or evil. (Source: Amazon, translated)

Takasugi Ichirouta is a high school student who is a huge fan of the Warring States period and has been called by his peers a "history otaku". As he was strolling around the ruins of a castle in the north of Gunma prefecture, he suddenly found himself engulfed by a mysterious light. When he came to, he was in the Warring States period! In addition, he ended up in a small castle called Kuoyama Castle which is currently under siege by Houjou's army and has no choice but to get involved in the battle. Will he be able to lead the samurai to defend the castle, all while solving mysteries and being surrounded by beautiful girls? And more importantly, will he be able to go back to his own time period? (Source: LNDB)