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Language User: (言葉使い, Kotoba Tsukai): Fukurou developed all of the styles of the Language Users,[33] and was capable of defeating the other six of Medaka's original suitors and win the first Jet Black Wedding Feast.[1] By using sound to vibrate and stimulate his muscles, Fukurou can pump blood through his body even without a heartbeat; this method is how he managed to survive for three years after being stabbed by the Ge'hyoukai.[34] As the creator of the styles, Fukurou can use all of them,[35] and also possesses a new style developed to counter Iihiko,[36] the Testament User style.[37]

Misconversion User (誤変換使い, Gohenkan Tsukai): Like Mogura Kugurugi, Fukurou can convert words from hiragana incorrectly to change their meaning.[38]

Cage: When saying "Welcome" (歓迎, kangei), Fukurou replaces the kan with the kanji for cage (檻, kan), summoning a cage around the target.[38]

Die: When issuing a command to someone (which involves the kanji し給え, shitamae), Fukurou replaces the "shi" with 死 (shi), killing the target.[38]

Kanji User (漢字使い, Kanji Tsukai): Like Sui Kanaino, Fukurou can rearrange and combine kanji freely to create new meanings.[38]

Quiet (静): When someone's head veins (青筋) pop out from anger (争), Fukurou takes the first kanji from vein (争) and adds it to anger, creating quiet (静). When made into a command, "be quiet" (静かに死給え, shizukani shitamae), Fukurou combines the Misconversion and Kanji styles to make the opponent be quiet by killing them.[38]

Label User (名札使い, Nafuda Tsukai): Like Momozono, Fukurou can seal others into name cards.[39]

Contradictory Conjunction (Paradox) User (逆接(説)使い, Gyakusetsu(setsu) Tsukai): The inverse connection style that specializes in the use of the word "therefore" (だからこそ, dakarakoso). This style makes the impossible possible; it paradoxically materializes the lowest possible outcome of a situation, such as winning against a strong opponent, or cutting a huge, resilient object. This is Fukurou's favorite style, and the style he considers most appropriate to use against Iihiko.[40] This style is most suited to contrarians.[41]

Testament User (遺言使い, Yuigon Tsukai): Fukurou's final trump card, which activates upon his death; it brings the moon falling down on the Earth. In case he could not complete his objective, Fukurou created this style to take down all of humanity with him.[