The Fruit of Evolution

The Fruit of Evolution: Before I Knew It, My Life Had It Made (進化の実 ～知らないうちに勝ち組人生～, Shinka no Mi: Shiranai Uchi ni Kachigumi Jinsei) is a Japanese fantasy light novel series written by Miku and illustrated by U35 (spelled "Umiko"). It began serialization online in January 2014 on the user-generated novel publishing website Shōsetsuka ni Narō. It was later acquired by Futabasha, who have published the series since September 2014 under their Monster Bunko imprint. Hanashi Media has licensed the light novel for an English release. A manga adaptation with art by Sorano has been serialized via Futabasha's digital publication Web Comic Action since September 2017, and it moved to the Gaugau Monster website in December 2019. An anime television series adaptation by Hotline aired from October to December 2021. A second season aired from January to March 2023.
Seiichi Hiiragi is an overweight high school student who is bullied by his classmates for being a "loser." One day, his entire school is suddenly transported to a video game-like world of swords and sorcery. He almost avoided it, thanks to hiding in a niche, but got caught by the God that did it just as it was erasing all evidence the summoned existed. When he unknowingly eats "the Fruit of Evolution," not only does his physical appearance change, but his life as a successful "winner" begins.
As the story progresses, it's shown that while the commoners are good people, the nobles and royalty are all selfish and greedy jerks exploiting the kidnapped otherworldly. The dungeons and their bosses were all created from vengeful victims.
The series, written by Miku, began serialization online in January 2014 on the user-generated novel publishing website Shōsetsuka ni Narō. It was later acquired by Futabasha, who have published it as a light novel with illustrations by U35 in fifteen volumes from September 2014 to December 2022 under their Monster Bunko imprint. Hanashi Media has licensed the light novel for an English release.
A manga adaptation with art by Sorano has been serialized via Futabasha's digital publication Web Comic Action since September 2017, and it moved to the Gaugau Monster website in December 2019. It has been collected in eleven tankōbon volumes.
An anime television series adaptation was announced on January 28, 2021. The series was animated by Hotline (with Feel and Children's Playground Entertainment in co-production), with Yoshiaki Okumura directing the series, Gigaemon Ichikawa overseeing the scripts, Minami Eda designing the characters, and Hifumi, Inc. composing the series' music. It aired from October 5 to December 21, 2021, on TV Tokyo, BS-TV Tokyo, and AT-X. Yoshino Nanjō performed the opening theme "Evolution:", while Poppin'Party performed the ending theme "Moonlight Walk". Crunchyroll streamed the series outside of Asia. Medialink licensed the series in Asia-Pacific. Crunchyroll began streaming an English dub on May 5, 2022.
On April 1, 2022, it was announced that the series would be receiving a second season. The second season is directed by Shige Fukase, with Yoshiaki Okumura serving as chief director, Iroha Mizuki and Nobuhide Hayashi designing the characters, and Hiroyasu Yano, Alisa Okehazama and Yūki Saitō composing the music. It aired from January 14 to April 1, 2023. The opening theme is "Evolution" by Nano, while the ending theme is "Adore Me" by Erii Yamazaki.