"The recipients of this invitation should also take note that their attendance is mandatory for the duration of the event. No prior engagements barring being sucked off into an alternate dimension by a certain vampire bastard will be tolerated. Failure to comply with these guidelines will result in a response from me personally. Gifts for the newlyweds are optional."
Main Character: Mana Ryougi, Saito Sahashi
Synopsis: And so, the day of judgment came upon them all.
Wedding invitations had been sent out already. However, how necessary they were was debatable since everyone who was invited already knew beforehand. The one purpose they did serve was codifying a threat that had been implied from the beginning of this whole affair.
Go-Karting with Bowser: Shirou and Shiki Tohno share a few drinks with their normally despised father-in-law, Zelretch, after Shiki Ryougi basically takes him out of the game for the rest of the evening.
Sadistic Choice: Kiri has the impossible decision of deep tongue kissing Artemis or getting his skull ventilated.
Skip to the End: Ciel just decides that she can't top Shiki forcing Zelretch of all people to behave and decides to finish up.
Thwarted Escape: Kiri gets away from Artemis only to run into the Ree at his safehouse.
Time for Plan B: Mana's godparents have to improvise once she puts her former best man through a wall. Of course, being who they are, it involves the kidnapping and blackmail of certain unfortunate parties.
Wacky Marriage Proposal: It wasn't meant to be per se, but the combination of Shiki Ryougi going absolutely insane with glee at the thought of her daughter getting married and Artemis showing up to take vengeance on Mana at the same time turn it into a fiasco.