Esper Harem in the Apocalypse - Chapter 880 Kinks

An ordinary office clerk was accidentally reborn into a vast and mysterious world of Xianxia, becoming a member of a small cultivation clan.The story begins in an endless sea of sand, in an oasis called the Yuquan Lake Oasis.

An ordinary student, a wretched peeper, a cowardly teenager with a kind heart. In a terrorist attack, he inherited the knowledge of countless elites, embarked on a path of God Jagged Tu…

He is an artist!

He is a mathematician!

He is a psychology Doctor!

He is a master of fighting!

In fact, he is a man

Taken off raw site:

A wretched, dirty young man is working during the summer when he was caught up in a mysterious explosion. After that explosion, the young man is then left with the memories and knowledge of dozens of the world’s experts.

He has changed, his heart has become cold, iron-blooded. He became a killing machine, his mind turned mechanical, calculative. Everything goes according to his plans and calculations!

In this magical, slaughterous world, a door is opened for him…

- Description from Novelupdates

Freyah Lima knew death all too well, but waking up five hours before the apocalypse gave her a second chance. Armed with memories of the past, she races against time to prepare. Yet, when she reaches her parking lot, she finds something-or someone-that shouldn't exist.A man stands there: silver hair, ragged clothes, and a translucent screen hovering above his head.[Florence PlaridelRole: Third Male Lead of the Novel PrimroseAbility: Healing and SwordmanshipFate: Unknown]Florence Plaridel-the half blood third prince, the unrequited lover, a skilled healer and swordsman from the last novel Freyah read before her death. In Primrose, he managed to escape before his execution due to treason, then said his farewell to the female lead, telling her he won't bother her anymore. After that, nothing was mentioned anymore about him.But now he's here. In her world. On the eve of its destruction.Freyah doesn't know how or why a fictional character has appeared, but one thing is certain: the apocalypse will rewrite the world, and Florence's unexplained presence could change everything.As survival becomes a race against fate, Freyah must decide: is Florence the key to saving this world, or a sign that its ending has already begun?The forgotten prince has returned-and with him, the rules of fate are no longer absolute.

I finally managed to kill the demon lord.