Shera L. Greenwood - How Not to Summon a Demon Lord / シェラ・L・グリーンウッド, Shera Eru Gurīn'uddo / 異世界魔王と召喚少女の奴隷魔術 Isekai Maō to Shōkan Shōjo no Dorei Majutsu

Angel´s Cyber Collars and restraints