Tantei Gakuen Q

由香里遭不明人士綁架，九九展開搜尋行動

Yukihara is kidnapped by an unknown assailant forcing Kyuu to find her. With the appearance of the rest of Class Q, they save Yukihara and help to solve the case of the idol's curse. In the end, there are hints of a sinister organization that begins to surface from the shadows... (Source: Wikipedia)

惠留同學來家裡吃晚餐，暗中期待能遇見她的兩位王子

Megu, prompted by her sister, invites her classmates to her house for dinner though she actually wants to see her 'two princes.' However, it seems like someone has broken into her house-- but is it more than a simple break-in? (Source: Wikipedia)

Class Q 學生在清掃校舍時發現一扇隱藏的門

A new teacher, Tatsumi Hongōu, is assigned to teach class Q. While cleaning their building in place of Kinta, Megu and Kyuu discover a hidden door, and go exploring. (Source: Wikipedia)

Kinta與朋友們在DDS尋找失蹤的Megu和Kyuu

Kinta, Ryuu and Kazuma realize that Megu and Kyuu have gone missing, and start a desperate search in DDS for them. (Source: Wikipedia)

Meg和Ryu調查精英學校中學生神秘失蹤事件

Meg and Ryu are sent to an elite school to find out about the mysterious disappearances and also about the one who calls himself "the Collector", who puts videos of the murders of students on the net. (Source: Wikipedia)

Meg遭綁架，學生死亡，網路出現錄影

Meg is kidnapped, a student is killed, and the recording of the video is on the net. (Source: Wikipedia)

網路謎團終獲破解，其秘密終於大白

The mystery is solved and the secrets are understood. (Source: Wikipedia)

美女偵探隊協助經歷誤認事件的Kyuu和Kinta

Megu, Yukihara, and the newcomer Kuniko Touya are sent to help Kyuu and Kinta after they're mistaken as peepers during on their case, but the three girls stumble upon another case. (Source: Wikipedia)

和真學校的密室事件：吹箭與消失的箭毒

Kazuma's elementary school is missing a 'cursed' blow dart and a sample of curare. A teacher is shot by a blowdart from a sealed room. (Source: Wikipedia)

在協助下，和真揭開兇手身份並準備正面對峙

With everyone's help, Kazuma discovers the perpetrator's identity and decides to confront the latter... (Source: Wikipedia)

Class Q 與時間賽跑，尋找由崇拜寶石者所放置的隱藏炸彈。

A madman has been planting bombs in three buildings. He claims that he can talk to the God of gems. DDS set out their move and manages to find the man, but he has already planted the fourth bomb. Kyuu and his friends figure out where the bomb was planted, but they were unable to find it. With only 5 minutes remaining until the bomb explodes, will Class Q find the bomb in time before it explodes? (Source: Wikipedia)

Class Q 調查小提琴教師面臨的威脅，但抵達時卻發現一起謀殺案。

Class Q are sent to investigate the threat sent to a violin teacher. But as soon as they arrive, a murder takes place. (Source: Wikipedia)

在追查連續殺人犯的同時，Ryu 成為第二起謀殺案的嫌疑人。

A second murder has Ryu looking like a suspect. Will the serial killer ever be found? (Source: Wikipedia)

真相大白，秘密浮現，另一場悲劇即將降臨

The murderer has been revealed and the secrets come to the light. However, even after the truth has been said, there will be one more tragedy of the night... (Source: Wikipedia)

Kinta 將 Ryu 送往醫院，此前 PLUTO 特工企圖謀殺 Kyuu 失敗

Kinta takes Ryu to the hospital after the failed murder attempt on Kyuu by a PLUTO agent. (Source: Wikipedia)

龍與九調查第三街的無頭女

Ryu, Kyuu, and Kyuu's mother go to the third street where The Headless Woman wanders, can they find the truth or face their death... (Source: Wikipedia)

Maya公主謀殺案調查

不忠者所居之聚落

Ryu展現出堅定的決心和意志

丹森平次被持槍男子綁架，對方要求支付贖金，否則將引爆炸彈。

Dan-sensei visits his best friend and comrade, Satoru Renjo, Kyuu's father. On their way back guys with rifles came and get him. The culprits called a ransom on the appointed time or else the bomb will go out. Will the detectives be able to rescue Dan-sensei or give into the culprits' demands? (Source: Wikipedia)

未來偵探面對DDS與Pluto的最終對決

The battle of DDS and Pluto have finally come, will Ryu escape his destined fate and will Kyu find out his past? The final battle had come to an end. There's only ONE answer!! (Source: Wikipedia)