Loner Life In Another World Light Novel vol 15 back

LET'S GET PHYSICAL!Haruka has finally managed to regain (some!) control of his body, but more training against the Dungeon Emperors is definitely in order before his new body is up to snuff in battle. In his efforts to master his new might, Haruka pushes himself to his physical limits and pays the price for it. A few setbacks won’t stop Haruka from pushing himself even harder—but the girls just might! Will Haruka be able to reach new heights under the assault of the girls’ affectionate fury? Meanwhile, Haruka finds a certain something within one of the objects languishing unused inside his item bag. Something...alive!