Koori no Koushaku-sama ni Amayakasaretai! Serious Tenkai shika Nai Youjo ni Tensei shiteshimatta Watashi no Funtouki @comic

Yuri Honda, an author, suddenly finds herself reincarnated into her own story. The worst part? She's Yuliana, an unfortunate character who meets a tragic end. In order to avoid the same ending as in her novels, she tries to gain the favor of her father, Lambert, also known as the "Marquis of Ice" for his chilly demeanor. For some reason, instead of hating her, he starts pampering her - feeding her sweets, and holding her on his lap! On top of that, the brother who should despise her doesn't seem to at all, and her magic master also seems to spoil her?!

(Source: NTT Docomo)