Monster City, I Carry My Zanpakutō to Contain Everything!

[Reaper, sequence monster, battle of wits, layout, system, single heroine (no heroine), not a virgin, not brainless, not fast-paced] The protagonist obtains the Death God system, awakens his Zanpakutō, and has the ability to slay ghosts with fists. This is a world full of monsters with various special abilities. It is also a world where people with various abilities are born. There are cultivators, awakened ones, and monsters contaminated by all kinds of weirdness. This is a world where the protagonist obtains the Shinigami system, awakens his own Zanpakutō, and embarks on the road to fight against various monsters. A huge picture scroll is slowly opening up for you. On the picture scroll are the strange [Needle Girl] appearing and disappearing out of thin air, a broken heart [Cracked Heart], a giant python entangled with a big tree, [Python Tree], and many monsters whose appearance is still unclear. They will eventually reveal their true appearance as the picture scroll slowly unfolds.