Akuyaku Reisoku ni Tensei Shitakedo Osananajimi no Mama ♂ ni Naruzo!

A male reincarnates into a BL novel as a villain destined to be executed. To avoid this fate, he takes on a maternal role toward his childhood friend, the story’s protagonist, in an effort to keep him pure and naive. His efforts lead to the protagonist being raised in a calm and stable setting. However, his plan seems to have backfired when the protagonist makes a threatening remark toward him.