Isekai Nite Yaseru Omoina Nodesu Diet! in Another World (Regina Books) [Light Novel]

[Machine Translation] Chimaki Shinohara, 22 years old, is a chubby, disappointing girl who has no boyfriend, no job, and is always inadequate. One night, she went to a convenience store to buy some steamed meat buns, but on her way home, she unexpectedly entered a different world! When she came to, she found herself surrounded by handsome men. They ask Chimaki to participate in an important ceremony as "a maiden from another world. They told her it would only take a few days, so she decided to cooperate, but... I'm too chubby to wear the ceremonial costume! Chimaki's struggle to lose weight has just begun!

彼氏なし、就職先なしで、いつも要領の悪いぽっちゃり系残念女子の篠原ちまき22歳。ある夜、お腹を空かせてコンビニに肉まんを買いにいくと、帰り道でまさかの異世界トリップ!気がつくと、イケメンたちに囲まれていた。彼らはちまきに「異世界の乙女」として大事な儀式に参加してほしいと言う。数日の辛抱だと聞いて、協力することにしたけれど...ぽっちゃりしすぎで、儀式の衣装が着られない!?このままだと元の世界には帰れないようで―かくして、ちまきのダイエット奮闘記は幕を開けた!