Hadakeru Kaibutsuはだける怪物; 解放的怪物; The Unraveling Monster

From Must Be Endless: Up until now it’s always been cute girls laughing by my side. But now, sleeping next to me, full of faults, smelling of tobacco, a lascivious man. But he’s the cutest of them all... (Continuation of Shuuna and Hayashida's story. First chapter timeline is paralel with Renai-rubi no Tadashii Furikata, but told from Shuuna POV)