Aida Mayumi

Daniel was born into an earl's family and lived a happy life. But when his father remarries, the wheels of his happiness begin to turn. His mother-in-law is after his fortune, and his sister is in love with a forbidden love...a beautiful and bewitching masterpiece of gothic horror.

(from ebookjapan): Mayumi Aida, who made her debut with "Happy End Story," continued to draw works under the title of "Love Catch Story" and created a comical happy story of youth with "Oh! This is the first collection of four works, including the first part of the "Lesser Student Council" series!