MTL - Martial Arts From Bandits - Chapter 14 murderer,

Jason was just an ordinary student at Westwood University's Hunter Department, known for never awakening any special powers—even at 21. Frustrated and desperate, he spent countless nights dreaming of finally unlocking his hidden potential.One lazy morning, as he lay in bed dreading another day of ridicule, Jason felt a strange surge of excitement. Without warning, he awakened a bizarre but thrilling power: the “Leisure Life.” His smartphone buzzed with a mysterious app, and curious, he tapped it open.In a flash, Jason found himself exploring abilities he never imagined—like using points to enhance his body or entering worlds straight from adult videos. Determined to test his newfound powers, Jason dove headfirst into the explicit world of JAV, a video he'd secretly watched only days ago.Life was finally about to get exciting.

The existence of a magician is to understand the truth of the real world. Saleen Metatrin, an ordinary magician, initially wanted to change one’s mind and destiny. During this, he went through many situations and phases in his life.

Entering Tokyo in the bubble era, in this strange era, the only familiar ones are Matsuda Seiko, Nakamori Akina, Kudo Shizuka…

- Description from novelbuddy

The first part is finished, and the second part is starting. Two worlds of immortals and demons, and the boundless universe. This decides the tone of the second part!