The story is that Miku wanted to meet Girlfriend and have a civil conversation with her, but Boyfriend stumbles onto a stage and be confronted by thousands of Miku fans. Now having to face the daring task of impressing Girlfriend and the fans, Boyfriend is ready to prove what he's capable of as he shows Miku what he's learned since their time spent apart.
A 2.0 update was later released, revamping the week with new songs and adding cutscenes. The songs from the original version are still available in Freeplay.
- "Suck-It-Up" (Aka "S.I.U.")
- "Disappearance" (Aka "The Disappearance of Hatsune Miku")
- "Tutorial" (Ievan Polka) (Tricky vs. Miku)
- "Endless" (Carol vs. Miku)
- Added Alliterative Appeal: The mod's title, Concert Conundrum.
- Age Lift: In her home series, Miku is 16 years old. In the Friday Night Funkin' universe, she's meant to be the older sibling between her and Boyfriend, meaning she's most likely in her 20's.
- The Cameo: In the foreground, notable faces amongst the crowd are Carol, Whitty, Hex, Monster, ENA, Teto and Neru. In the 2.0 update, Carol is the only audience member left over from the original version, with the rest being replaced by Tricky, KOU, Sunday, Kapi and Monika.
- Mic Drop: Hatsune Miku does this just before "Disappearance" starts. If the player pays close enough attention, they can see Boyfriend is shocked as he sees this happening.
- Mood Whiplash: The first song, "Popipo", is an upbeat song about Miku trying to convince the listener to buy vegetable juice. The second song, "Aishite", is far less upbeat and has Miku portray a young girl who forces herself to be perfect out of a desperate need for approval and affection from others.
- Mythology Gag: Monster being present in the audience likely references Week 5 from the original Friday Night Funkin', in which he could be seen in the background standing next to Miku.
- Promoted to Playable: The player takes control of Miku for "Ievan Polka" and "Endless".
- Related in the Adaptation: Hatsune Miku isn't stated to have siblings in her canon, while Boyfriend's only currently known sibling is his adopted brother Ritz the Rat (an upcoming character for the vanilla game). Here, Boyfriend and Miku are related as brother and sister.
- The "Tutorial" in this mod is Hatsune Miku's cover of "Ievan Polka", but as a cover between her and Tricky. Tricky singing with Miku could be a nod to The Date Week mod, in which they could be seen walking together as some of the many cameos.
- "Endless" comes from bbpanzu's Golfing with Carol, in which Miku had an appearance as a special guest singing the song. Carol even takes Girlfriend's place on the speakers for this song.
- The Show Must Go On: After "Endurance", the power goes out, but Miku sees no reason to stop the concert because of this. She simply gives Boyfriend a glowstick, and the singing continues.
- Turns Red: Miku drops the mic for "Disappearance" and pretty much goes ham, even flailing about during three parts of the song, including the opening. This gets subverted come the 2.0 update; while "Disappearance" is still pretty hard, Miku doesn't use any unique model this time.