Gokudou-san wa Kyou mo Papa de Aisaika

Now that his love for his childhood yakuza friend Kengo is requited/mutual, Sachi started a new life, in which he, Kengo and Fumi, the kid with special circumstances, live together. The bond between Kengo and Sachi deepened as they became lovers, but Fumi got into a quarrel at his nursery school over Fumi… Furthermore, when a beautiful woman named Misuzu, who helps the group and gets along well with Kengo, showed up, Sachi began to question what his existence means to Kengo and Fumi, and noticed his insecurity… Source: MU