This is a sequel to the previous book, telling the story of a group of high school seniors and their teachers who travel into the world of Detective Conan and become characters from Honkai Impact 3rd.

Multiple main characters, no romantic pairings (except for the official pairings), chat group, movie viewing, gray faction (leaning towards cooperation with the red faction), and independent organizations.

The author is a novice, a recent high school graduate. As a science student, the writing is not very good. The characters in the book are not based on the author himself, so there will be out-of-character (OOC) aspects in their personalities, reflecting the author's personal interpretation.

[Slice of Life, Harem, Heartwarming, Funny] Louis, a little boy who fell from the sky. Ship girls, a group of lonely, infighting girls, but when the ship girls met Louis, the port already had a commander. As the only commander in the port, Louis's daily life is busy and bittersweet. The ship girls steal his clothes, rob him of his food, and even beat him up in alleyways. Every time, Louis gets sucked dry by the ship girls; anyone who doesn't know better would think they're vampires. "White Dragon, give me back my bitter tea!" "Frederick the Great, don't come any closer!" Today, Louis is still being driven crazy by the ship girls...

The male protagonist is transported to a two-dimensional world due to a plane crash.

Unfortunately, before he could even react, he was drawn into an evil ritual.

The heroines participating in this game were actually heroines from the visual novels he had played.

Watch how the protagonist saves the world amidst the conflict between humanity and desire.

Having been transported to the world of The Legend of Heroes: Trails of Cold Steel, starting as a lowly Bracer, what kind of waves will this protagonist, who is familiar with the story of The Legend of Heroes, stir up in this world?