雪と墨 (Series) favorite_border

[DeepL Translation - needs review] Volume 1: [With special e-only illustrations! For the "third time" in my life, I turned 36 years old for the "first time. Tokiwa, a company employee, lives with his cousin Asagi. They spend their days together, but on the night of Tokiwa's birthday, they drunkenly confess a secret to each other...? I actually have memories of all my past lives. Actually, I am a time traveler! The first volume of a science fantasy about life and time, featuring a reincarnate...