A fresh high school year always means much to come, and one of those things is joining a club. Being in a dilemma about which club to join, Yui Hirasawa stumbles upon and applies for the Light Music Club, which she misinterprets to be about playing simple instruments, such as castanets. Unable to play an instrument, she decides to visit to apologize and quit. Meanwhile, the Light Music Club faces disbandment due to a lack of members. This causes the club members to offer anything, from food to slacking off during club time, in order to convince Yui to join. Despite their efforts, Yui insists on leaving due to her lack of musical experience. As a last resort, they play a piece for Yui, which sparks her fiery passion and finally convinces her to join the club. From then onward, it is just plain messing around with bits and pieces of practice. The members of the Light Music Club are ready to make their time together a delightful one!

It is almost the end of the year, and Houkago Tea Time has been invited to participate in a live house on New Year's Eve! The iconic band members are Yui Hirasawa, the carefree guitarist who is enthusiastic to play music; Mio Akiyama, the shy bassist who gets embarrassed easily; Tsumugi Kotobuki, the gentle and sweet keyboardist who finds joy in normal activities; Ritsu Tainaka, the extroverted drummer who likes to tease Mio; and Azusa Nakano, the rhythm guitarist who is one year younger than the rest but slightly more mature. Performing in the set gives the girls the rare opportunity to meet various people from different bands, including the one that invited them, Love Crysis. Will Houkago Tea Time be able to delight their audiences successfully?

In Shinjuku ward's east side lies Kabukichou, a vibrant city of chaos that glows brilliantly with neon lights but also hides unseen darkness. Employed at a university hospital on the west side, John H. Watson is looking for someone who can assist him with an odd case. His search leads him to the Pipe Cat, an underground bar that serves as a meetup venue and job board for some of the best detectives in Shinjuku, the most prominent among them being Sherlock Holmes. Upon finding the bar and meeting the peculiar investigators, John learns that they are pursuing a case involving Jack the Ripper, an infamous serial killer. Due to subsequent events, John ends up driving Sherlock to the crime scene of a murder supposedly carried out by Jack the Ripper. Even though John is only there to enlist Sherlock's help with his case, he witnesses Sherlock brilliantly uncover the truth behind the crime scene. However, he begins to realize that Sherlock is not only a genius detective but also an eccentric character. As John continues to request Sherlock to assist him with his case, he finds himself spiraling into the detective lifestyle of solving cases beyond the minds of ordinary civilians. Through this work, John begins to see the true colors of the chaotic city that is Kabukichou and starts to unravel the unsettling mystery behind his own case.

Haruto and his comrades continue to fight against the forces of Dorssia. However, many things remain unanswered in the midst of battle, including the past of L-Elf and his fellow soldier's past, the destiny of the mysterious girl Liselotte, and the feelings of Haruto, Shouko, and Saki. The relationships and loyalty of each and every member of each army will be tested as the clash of ideals and power reaches its climax. (Source: ANN)