Blessing of the Campanella(2010)

Based on the Shukufuku no Campanella - la campanella della benedizione - adult game by Windmill.

Blessing of the Campanella is a fantasy adventure series set in a bustling trade city where item engineer Leicester Maycraft leads an adventurer's guild called Oasis. During a meteor shower celebration, a falling star crashes into the cathedral, and Maycraft discovers a mysterious sleeping girl inside. When she awakens, she carries an enigmatic message that sets off a chain of extraordinary events. The discovery pulls Maycraft and his guild into an unexpected adventure filled with magic, danger, and discovery. As they uncover the girl's origins and the meaning behind her cryptic message, the group must navigate treacherous quests and uncover secrets that could change their world. Blending action with mystery, the series follows their journey as they confront both external threats and the deeper mysteries surrounding the girl's arrival.