Other name: できちゃった男子, できちゃった男子 ハネムーン編, できちゃった男子 ハーレム編, 学生奶爸, Capable Young Man, Dekichatta Danshi: Harem Hen, Dekichatta Danshi: Honeymoon Hen
Summary: The story is about a guy who's been abandoned by his family. He's got a relationship going with one of his classmate/childhood friend/neighbour. One day, a baby was left at his doorstep by his sister, who had seen everything. How will these two boys' lives change witht the addition of the small "bunle of joy" ?