一人っ子男児の俺が四つ子姉妹の一人になったわけ

Embark on a whimsical journey with Yuki Morishima in this captivating web novel originally written in Japanese. Witness the unexpected turn of events as Yuki transitions from a lone boy to one of four identical sisters after a mysterious incident during the hottest day of the year. Explore themes of comedy, fantasy, and gender transformation, intertwined with sibling dynamics and reincarnation elements. Experience the age progression and intriguing male-to-female storyline in this light-hearted yet engaging narrative.