Guntapat Kasemsan Na Ayudhya

Though they've fulfilled their pledges, First and Balloon secretly leave monkhood so they can live secular lives but a new ghost starts haunting them.

A group of friends have to break a curse from an ancient spirit and have a friend ordained as a monk.

1941. Chumphon Province, Thailand. Mok and his ragtag unit of young soldiers are thrown against the invading Japanese forces. The invaders bring with them a terrifying biological weapon, unaware that it has plans of its own.

The mc was forced to become a monk at a temple in the countryside. He will then learn to accept his guilt and not behave inappropriately.