Chiku Bingo summary: Kishiwada-kun is the local, unbeatable, TOUGH yankee. His only, and biggest weak point was his ULTRA SENSITIVE nipples! A game he played in his childhood, Nipple Bingo, led to the development of his nipples which now turn STIFFLY pointed at the slightest touch. This even causes his lower half to react hotly!! No one was supposed to know this, and yet one day the IKEMEN Andou showed up. It turns out he was the one who caused Kishiwada’s predicament in the first place! Get ready for Kishiwada’s nipple twisting hot story of youth (sex)!