Okay so, today i remember a long lost game that i haven't played in awhile, the story of a game is that you're an employee of a cafe, after you closing the cafe for a night you go home but first you'll be visiting a bookstore then there you find a book in that book contain a spell and a diary of a human from our world isekai'd into another world, after you got back home you use a spell from that book and suddenly a ritual circle appear in your room, then a girl (knight) appear from that circle (the position of the circle is on the wall on the top of the bed), long story short the knightly girl told you about a demon lord named Diablo in form of a Dragon.... can anyone help me to look for it ? i wanna play that game again but i can't remember the title nor the developer, thank you.