A manga where the mc was reincarnated as a baby and was in the orphanage — only to have a new cat-like sister? （￣へ￣）/
This one? https://www.mangago.me/read-manga/kojiin_tamer/
A manga where the mc was reincarnated as a baby and was in the orphanage — only to have a new cat-like sister? （￣へ￣）/