Funbag Fantasy: Sideboob Story (Kyonyuu Fantasy Gaiden in Japan) is an H-Game and the first sequel to the original game in the Funbag Fantasy series, releasing in 2011 and receiving an English localization in 2018.
Two years after Lute Hende graduated in last place from the Royal Knight Academy, he has become king of Edelland and enjoys a cozy life with his three official & three unofficial wives. Their efforts have granted Edelland an age of stability, cementing Lute's support among his people even with his vulgarity becoming further entrenched in his reputation. Unfortunately, Edelland's success has kindled envy in other nations, especially its neighbor Lingobard.
Following the execution of Prince Bobon at the conclusion of the previous game, Lingobard's King Bazalt I invaded Edelland to claim ownership of the throne. But his forces were routed within days, and he was forced to cede part of his kingdom to Edelland. Hungry for revenge, Bazalt sends his nephew Argent into Edelland to kill Lute with the aid of magical artifacts from Marquis Cuvier, the grand chamberlain of Lingobard's other neighbor Fronce.
Meanwhile, a rift has developed within the Church of the Holy Rood over whether to recognize Lute's demon wife Shamsiel as a legitimate queen of Edelland. On the covert suggestion of Marquis Cuvier, the anti-Shamsiel faction proposes the church send an investigation team to assess her worth. They neglect to mention the additional magic items Cuvier provided to tilt the verdict in their favor.
Funbag Fantasy: Sideboob Story contains examples of:
- All Love Is Unrequited: Nellis begins the story with a crush on Argent, which he never notices because he's too interested in Gladys, who abhors him.
- Blonde, Brunette, Redhead: Lute's official wives at the start: Luceria, Roxanne, and Shamsiel.
- Clear My Name: One of the two main plot threads in the first half has Shamsiel dealing with a smear campaign by political opponents using Shamsiel impostors to frame her for murder.
- Cutting Off the Branches: The only events from the previous game which are treated as canon are the ones leading to the ending with all six women. Everything else, including the entire trip through the Giropon Woods, never happened.
- Fanservice Pack: All six returning women have received new everyday outfits. Overall they're similar to the original ones, but are more detailed and show just a bit more skin. Shamsiel, on top of retaining the inexplicably enlarged breasts she picked up midway through the first game, now sometimes dons an elegant white dress which emphasizes her bust even more.
- Fantastic Racism: Not everyone in Edelland is happy about their king doing away with the demon extermination laws and marrying a succubus. Outside the borders, leaders in both Lingobard and Fronce find it objectionable as well, and the Church of the Holy Rood is in conflict with itself over whether Shamsiel can be queen.
- Gaiden Game: Averted, despite the Japanese title calling it one and the English title keeping the implication. It's a direct sequel to the original game.
- Go Through Me: The smear campaign against Shamsiel ignites such a frenzy that when Lute and Shamsiel arrive to calm things down, an Edellandian soldier attempts to kill her on sight. Lute steps in front of Shamsiel to protect her, causing everyone to freeze as nobody there wants Lute dead.
- Happily Married: Continuing from the previous entry, Lute is officially married to Shamsiel, Roxanne, and Luceria. Their love and libido remain as strong as ever. By the end, Gladys has become a queen as well.
- Impostor Forgot One Detail: The fake Shamsiel working to tarnish Shamsiel's reputation has different-colored hair and a smaller bust. Limiting her activities to nighttime conceals the differences enough that she's able to fool people who are not as familiar with the real one, but trying to intimidate the former rebels at Vunderbalt who'd spent months working under Shamsiel goes very poorly and runs the plan into a brick wall. At least until another, near-perfect impostor joins the fun.
- Porn with Plot: Lute has to navigate life as King of Edelland, dealing with Lingobard, Fronce, and the Church of the Holy Rood all attempting to undermine him and in some cases each other. Meanwhile he and his wives, both official and not, continue to be very sexually active, on top of two more women joining the festivities.
- Royal Harem: Lute, as king, has Shamsiel, Roxanne, Luceria, Gladys, Isis, and Emeralia from his previous adventures. This time around, Nellis joins the group, for a total of seven women. Queen Aphrodia also begins a romantic relationship with Lute, but does not live with him past her week of "reparations".
- Sitcom Arch-Nemesis: Shamsiel and Gladys are just similar enough in general personality and overall approach to love and danger to get on one another's last nerve. All through the game, the two can bicker over anything.
- Talking the Monster to Death: Lute is attacked by an evil spirit which psychologically breaks its victims and forces them to kill themselves, but Lute, being a greater class of demon, is unaffected and unintentionally talks the spirit into dying in its own despair.
- Trojan Horse: Just prior to the true ending, Cuvier shrinks a bunch of his soldiers, hides them in wine barrels, and offers the barrels as a gift while visiting Edelland to sign a pact. When negotiations stall, Cuvier brings the soldiers back to full size, brags that he's taken over the castle, and demands Lute sign the pact. It might have worked, if Argent hadn't told the guards to put all the wine barrels in the dungeon, resulting in the soldiers being trapped.
- World of Buxom: Once again, none of the ladies are below an H-cup.
