2 results
Apparently, My Childhood Friend’s Older Sister, Who is Called a Gal Nowadays, is a Yandere Who Pathologically Loves Me, a Degraded Version of My Twin Brother Who Can Do Everything Perfectly
Douyara Ore wa Imadoki Gal na Toshiue Osananajimi kara Gekiomo Kanjou wo Mukerareteirurashii· どうやら俺は今どきギャルな歳上幼馴染から激重感情を向けられているらしい
manga

Yuito Kujo, a high school student, constantly compares himself to his exceptional older brother and sees himself as a lesser, "degraded version." Caught in a spiral of self-deprecation, his adolescence turns even darker when he discovers that his childhood crush, Suzuno, is in love with his older brother. But just as Yuito begins to lose hope, Suzuno's older sister, Kano—a college gal—develops intense, overwhelming feelings for him...!?

5 Seconds Before Falling in Love with a Gal: Anthology Comic
Gyaru ni Koisuru 5-byoumae Anthology Comic· ギャルに恋する5秒前アンソ ロジーコミック
manga

These gals may be dressed up in flashy clothes and act a little naughty. But when they show you that innocent expression, you won't be able to resist...? This anthology is a gift for guys who want to flirt with free-spirited gals! (Source: Comic Owl, translated) Included Stories: 1. Don’t seduce me, Sakihara-san! (誘惑しないで!咲原さん) (Youhei Kazawa) 2. Kiyokawa-san is definitely a gyaru! (清河さんはどうみてもギャル!) \[saku\] 3. The gyaru childhood friend wants to give a warm welcome! (幼馴染ギャルはもてなしたいっ!) \[Ritsu Urano\] 4. The gyaru likes ramen! (ギャルはラーメンが好き!) \[Hidaridue\] 5. Munching Kanna-chan: A recipe for making gyaru fall in love with you~ (モグモグカンナちゃん~ギャルをオトす愛情レシピ~) \[Kuzuri Noki\] 6. The inexperienced gyaru asks for her teacher’s lessons (未熟なギャルは先生に教えを乞う) (Shoumi Kamon)