Sakura Wars I Sakura Wars II Sakura Wars III: Is Paris Burning? Sakura Wars IV Sakura Wars V: Episode 0 (Sakura Wars V's prequel) Sakura Wars V: So Long My Love
When Ranmaru is defeated for the second time (not counting all the other instances where he merely watched and taunted the heroes), he is held at gunpoint by six armored robots, and Gemini finally recognizes him as the monster who killed her master, but her revengeful intent is quelled by the morality lesson Shinjiro gave her earlier. You'd expect either for Gemini to realize she could kill for a good cause instead of revenge and take Ranmaru out once and for all, or anyone else to step in and do the job, or at least to capture him or otherwise make sure he was in no condition to do further harm. Instead Gemini tells him to scram and never return, and he runs away with nobody else so much as lifting a finger to stop him. The first thing he does after getting out of their sight, of course, is to vow revenge and speed up Nobunaga's resurrection...
At the end of the Disc One Final Dungeon, Oda Nobunaga has completed his resurrection, is able to summon the Sixth Sun to level the whole world and rule over it, has plenty of energy thanks to the negativity he has absorbed throughout centuries, and the Star Division arrives just minutes after he's regained his full power. He also has Ranmaru by his side, and is fighting in the middle of the Demon Castle itself. You'd expect Nobunaga to just whip out a Wave Motion Gun or summon his strongest soldiers, or activate some of the castle's traps to easily dispatch all of the heroes, removing all traces of the only threat to the success of his conquest. Instead Ranmaru unnecessarily pins Shinjiro down as Nobunaga shoots two giant arrows through his chest (impaling and killing Ranmaru in the process) and lets him fall off the tower, letting the rest of the team retreat while he stands there gloating. And then when he confronts the Star Division for the second time, he appears to be blasting them away, but he's actually playing a Mind Screw on Shinjiro; then he has each team member fighting an Underpowered Evil Side of themselves, letting them regroup just in time to help Shin with his own Superpowered Evil Side. He doesn't even try to take them on himself until they basically force him to.
In the first episode of the TV series, Sakura ends up messing up Flower Division's stage production. Despite Yoneda telling Sakura to wait to apologize until later, Sakura tries to apologize to Maria Tachibana and Iris, but the damage has been done. They both view her negatively. She tries to apologize to Sumire, who was clearly really upset when Sakura ruined the production. Unfortunately, Sumire is having an interview with the press. You'd Expect: Sakura to wait till Sumire was done with her interview with the press, so that she wouldn't anger her more. Instead: Without even thinking, Sakura attempts to apologize to Sumire, but ends up tripping on the cords to the lights, and ruins Sumire's interview, which ends up angering her even more, leading to strike 2, and Sumire angrily tells Sakura if she causes more problems, she'll wish she was never born. Sakura then ends up causing the Kobu-Kais to activate, attack, and wreck each other, leading to strike 3 and Sumire angrily slapping Sakura, and kicks her out of Flower Division, leading to the episode's Downer Ending.
After Yoneda is missing, the Imperial Flower division is put on indefinite standby at the Flower Mansion. Unfortunately, while this is going on, the army places Yoneda's second in command, Kaede Fujida, under house arrest along with the ladies of Wind Divison (the Bridge Bunnies). You'd Think: The army commander would have additional guards to maybe hold the Wind Division ladies in the control room hostage, in case the Flower Division decides to break into the theater and take it back. If not, when Kanna breaks into the control room, the army commander could simply pull his gun out and point at Deputy Commander Kaede Fujida's head, and threaten that he's going to blow her brains out unless Kanna, Sumire, and Leni stand down. Instead: The army commander has no additional guards, and points his weapon not at Deputy Commander Kaede, but at Kanna telling her to stand down, and as Kanna talks, Kaede takes the opportunity to knock out the army commander.
After Brent Furlong merges with his Japhkiels and becomes a monstrous demon thing, he attacks the Flower Division. Sakura, Iris, Kohan, Sumire and Kanna dodge the arm/tentacles by moving sideways. Ratchet Altair, the newest member of Flower Division, however, doesn't. You'd Expect: Ratchet to take cover along with her comrades who are dodging the attack. Instead: She just sits there and gets whacked by Brent's monstrous Japhkiel form and ends up slamming into another building, incapacitating her Eisenkliede, and taking her out of the fight.