Omoi wa Itsumo Senkou Hanabi

is a Japanese light novel series written by Ginga Isshiki, with illustrations by Yui. The series began publication on October 10, 2004 by ASCII Media Works under their Dengeki Bunko publishing imprint.

Synopsis
Yuya, who was born in the Sō clan of the Mikado Rei-ryu, but cannot use flame art, was sent to the Takakura family, where three sisters live. I thought this was a delicious situation, but Ayakumo, the eldest daughter who became Yuya's master, went up Yankee, and Mifu, the third daughter, was cold from the end to Yuya, and the only friendly one was Misora, the second daughter. Even so, Yuya, who is still unsuccessful, continues to practice today while inflating her naughty delusions ...