Usotsuki Mikun to Kowareta Machan 4 (Dengeki Bunko) [Light Novel]

[Machine Translation] March 31. Mayu went bankrupt. April 1st. I went alone to the mansion where the kidnappers used to live. In other words, it was my former home. It was now the property of the Oe family. What awaited me at the former home was an addition and remodeling that showed not a trace of its former appearance. The windows had iron bars, giving the house a distorted Western-style appearance. Inside the house, I was greeted with goosebumps and a reunion with my abominable past. I accept everything and explore the mansion. What I seek is something to help Mayu return to Ma-chan. However, things start to get chaotic. The phone line is cut, the cell phone is submerged under water, and we are trapped with the Oe family.... Yes, Fushimi, why did you follow us? In a closed circle, total annihilation is the flower of the circle. Well, I...well, I...well... Will I be able to get Mi-kun back and save Ma-chan?

三月三十一日。マユが破綻した。四月一日。僕は単身、かつて誘拐犯が住んでいた邸宅に足を運んでいた。つまり元我が家だ。今では、そこは『大江家』の所有物となっていた。元自宅で待ち受けていたのは、以前の姿を一片も感じさせない増改築。窓には鉄格子がはめ込まれた、歪な洋館的風貌。屋内では、家人による鳥肌な歓迎と忌まわしき過去との再会。僕はすべてを受け入れ、屋敷を探索する。求めるものは、マユがまーちゃんに戻るための何か。しかし事態は混迷を極め始める。切られた電話線、水没する携帯電話、大江一家と共に閉じ込められる僕ら…ら?そうだ伏見、なんでついてきたんだよ。クローズド・サークルって、全滅が華なんだぞ。…さて僕は。みーくんを取り戻し、まーちゃんを救うことができるのだろうか。