Mystari's manga / #Teacher x Parent(2)

Ch. 1-4 A high school teacher, Ueda Wataru, was rejected by a person he loved back when he was a high school student and has been timid in love ever since. However, he's now fallen in love with his student's father, Ippongi Kazushi, a Yakuza. Although Ueda knows that he shouldn't be, he's fascinated with the good looking Ippongi's sweet words... Alternate version: http://mangapark.me/manga/houkago-no-love-call

Cute story about a kindergarten teacher who falls for the strict father of his new student.