Tsuma x Tsuma 3.5 ~Minato to Happy Love Harem!~

Koutarou has successfully defended Sakura Mart. He has now married his mother in law Minato and decided to have their honeymoon in a paradise called Bariri Island in the south, famous because its mystery island full of spirits and a hotspot for newly-married couples....what adventures await for Koutarou and Minato?...