Same plot as Amagami manga's but from diferent artist/authors.

Kaneda Wataru tries to be less of a burden to his busily working mother and takes on lots of part-time programming jobs. During times like these, on Wataru's first day in his 2nd year of high school, three girls suddenly appear, kiss him and claim that one of them will have to become his future fiancée... (Source: Batoto)