Ako joins the fight, this time as an assist! 6S works similarly to her playable version’s 236B Ice Bolt attack while 5S is her 214X, so she effectively heals her own recovery in addition to giving the player some meter. This plays an important role as she has the ability to level up and with each new level her 6S attributes change, gradually becoming more powerful. Her level is retained between rounds and when she reaches the level cap of 3 she unlocks the ability to strengthen the player's Climax Arts by pressing S during the start-up at the cost of using the support gauge. In order to level up, 5S must be used 4 and 10 times to level up to 2 and 3 respectively. Each time Ako levels up she grants Status Up Level 1 and 2 for 20 seconds.

SEGA's vocaloid mascot joins the fight with mic in hand! For 5S Miku cheers on the player as she dances and at the end of it grants the player Status Up Level 1 for 20 seconds. During the dance, if the player is in Trump state the rate it decreases at will be slowed down and if recovering their blast gauge the recovery speed will increase. If the player is hit any time during the dance Miku will stop disappointedly. For 6S Miku takes (a mic) into her own hands and assists the player with a screeching yell. Her voice is amplified by the speakers and hits multiple times, launching the opponent on hit. Before leaving the stage Miku drops the mic which can be used as a combo extension.

The Queen of Tokiwadai Middle School enters the dream duel! Misaki uses her ability Mental Out to control others to do the fighting for her. Misaki boasts a total of 4 attacks, each of which varies in unique ways. 5S puts a mark on the opponent which when their assist is called, is immediately denied by Misaki's mind-controlled minion. The effect lasts 4 seconds and goes away once the opponent is hit. Misaki attempts to directly afflict the opponent during 5[S] but is only successful once the player hits the opponent. On hit the opponent is briefly stunned allowing for a follow-up combo. Afterward, the opponent's ability to call their assist is locked for 5 seconds which is denoted by a red cross over the assist. For 6S Misaki's minion jumps towards the opponent and slashes downwards causing ground bounce on hit. This move can track the opponent's position up to a third of the screen. For 6[S] the minion jumps into the air and sends a flurry of icicles down to the opponent. This move tracks up to fullscreen and causes ground bounce on hit.

The last boss from Dengeki Bunko Crossing Void makes a special appearance! Sephir's 5S throws a sword that tracks the opponent which explodes on contact, either knocking the opponent upwards on hit or dealing white damage on block. Her 6S can be used in multiple ways, first off as an anti-air from the first hit or as an oki tool with the follow-up sword spin afterward. The spinning attack can be avoided by crouching but the moment you stand up you'll be forced into blocking it. This can potentially be used to the blocking player's advantage with the use of Reflection Guard...