Crossover, no romance. The River God from Ten Cold is here, and concept gods are the strongest. √
When the dimensional barriers between worlds collided, the concepts of different worlds briefly resonated with one another. This delighted the River God, who had originally been forced to live the life of a shut-in.
As a concept god, the River God can control anything associated with the concept of rivers, so he can easily teleport to any river.
"After all, the Milky Way is a river too," the River God said.
But even a River God this powerful had plenty of troubles.
In the World of Bungou Stray Dogs, he was just about to relax in a new river and make some new fish and shrimp friends when a bandaged fellow fell into the water with a splash and knocked him out.
The bandaged fellow, high on poisonous mushrooms, took the River God's hand and said, "Beautiful mermaid, let's die together!"
The ever-genial River God picked up the bandaged fellow and called out to the person on the riverbank with his famous line: "Young wage slave, did you drop this golden bandage man, this silver bandage man, or this perverted bandage man who's already broken?"
In the Detective Conan world, the River God worried for the nth time over the weapons and human body parts that somehow kept turning up in his temporary home, once again deciding that the rivers in this world were not fit to live in.
In the Home Tutor world, the River God picked up a boy who had dived headfirst into the water, wearing nothing but his underwear and with flames coming from his head, and pondered the latest fashion trends.
The next time he was summoned, he found himself given the title of "Heroic Spirit." As the River God, whom everyone considered weak, meek, and utterly unreliable, watched the evil of this world pouring out of the Holy Grail, he pondered a question:
Did this thing, which could flood a town, count as a river?
Theme: A gentleman is upright, and the highest good is like water.