MTL - My Inseparable House Guests - Chapter 16 What Conan?

Derek McCoy was a man that since his youth had to face many adversities. Often forced to settle with surviving rather than living, had finally found his place in the world, until everything was taken from him one last time. After losing his life to avenge his brother, he reincarnates until he finds a world worth living for, a world filled with magic and monsters. Follow him along his journey, from grieving brother to alien soldier. From infant to Supreme Magus.

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Tags: Transmigration, Male MC, Western Fantasy
Schedule: 1 chapter per day
Chapter Lenght: 1700 - 2000 words but usually are even longer
Warning: The MC is not an hero nor an anti-hero. He is a broken, cynic and misanthropic person looking only for his own gain. If you are looking for a forgiving, nice, MC that goes around saving people in distress, this is not your cup of tea.
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I don't own the cover but wasn't able to find the author.

​The world, Earth, was devastated by the Great Incursion, an apocalyptic invasion by dimension-hopping monsters. Humanity's only hope now lies in Galaxy Fall, a newly accessible parallel world where they can gain strength through a System of quests and missions.​Five hours after the Invasion, the betrayed survivor Mirabella is mysteriously reborn and gains a unique power: the [Master Account System].Her initial skill is the deceptively simple but devastating 'Multiplier x100', which applies a 100 times buff to all her offensive capabilities, including physical attacks, spirit energy skills, and damage-over-time effects.​Mirabella must now transform from a silent survivor into the world's most feared warrior, who was only scared of one thing, which is?“I Hope I don't run out of opponents in Both worlds.”

Within the red tent, under the passionate eyes of the man on top, she was forced to make love and three thousand black strands turned to white.

One day, Yoichi who grew up while not knowing his parents has received the news of his father’s death. His father left behind a testament——which said he is to pick only one out of five ‘little sister candidates’?!