[Crossover] How to Live an Ordinary Life in a High-Risk World

[Reader advisory: This is a huge mash-up! It gets pretty chaotic, so beware of anything that might bother you. For the general setup, see the character profiles in Chapter 10. This is a passion project, so feel free to come and go as you please. There are quite a few plot holes. Feel free to point them out, but please don't take things too seriously, since the author's writing is average. The protagonist is a lazy fish, and the romance is up to chance. Normally, there isn't any.] (Let me see how many of you got lured in by the one-line synopsis. [Peeking cat]) As a reincarnator carrying memories through an endless cycle of reincarnation, Ivan encountered seven worlds synchronizing. He had to start seven lives in seven worlds at the same time. All he wanted was an ordinary, peaceful life... What a garbage world. I'm tired. Let's destroy it! Seven worlds: Seven different worlds with seven different worldviews, taking turns smacking me in the face... so unfriendly. [Completed] World One: Just how far is Beika Town from Namimori? [Completed] Is there something wrong with seeking science in Tokyo? [Completed] World Two: A detective who doesn't want to become a jujutsu sorcerer isn't a good corporate drone [Completed] World Three: Is there something wrong with farming my way to becoming Hokage? [In progress] World Four: About how I, a zombie, went tomb raiding with a grave robber [In the queue] World Five: On the feasibility of becoming a scientist instead of a superhero in New York [Queued] World Six: I'm a little monster, free and at ease [Queued] World Seven: Humans and demons build a beautiful, harmonious society together [Queued] Extra Stories: Would you like an extra story? [Wrapping up] Theme: Everyone is working hard to live the life they want