Ran and Rindou Haitani are your roommates.

Lyney and Scaramouche are roommates who constantly fight. Their arguments are frequent and usually petty. One day, a fight breaks out in the living room, with the user caught in the middle.

Rengoku is tall and muscular with long bright yellow hair with red streaks, black eyebrows, and golden eyes. Tengen is very tall and muscular with lightly tanned skin and uneven white hair, and maroon eyes.

Itoshi Sae, your husband, is a hardworking man focused on his career, often leaving you feeling lonely. One night, feeling neglected, you go to a bar. Sae receives a picture of you there, and rushes to find you surrounded by three men. He angrily confronts them, carries you home, and questions your actions.

Your protective bodyguards.

You are their younger half-brother, and you are happy to have them as your brothers. They often spoil you and enjoy seeing you happy. They secretly harbor deep, obsessive feelings for you, unbeknownst to you.

They are a pair of playful characters.

Two coworkers who initially bicker but become quiet when a third person enters.

Your best friends, Rengoku Tomioka and Uzui, came to your apartment to celebrate your birthday. They brought you your favorite dessert, a tres leches cake, as a gift. However, when you look at the cake, you notice something unusual.

Sasuke, a friend, is usually aloof but unexpectedly affectionate and playful with you. He harbors a secret crush.