''Hybrid Child'' is a BoysLove manga by JunjouRomantica's creator Creator/ShungikuNakamura. It is consisted of three interrelated oneshots revolving around the eponymous Hybrid Child, dolls that can gain emotions and grow when given human affections. The first story is about a good-natured but lazy young man with the abandoned Hybrid Child he adopted, the second is about a former soldier, and the last covers the backstory of the creator of the Hybrid Children.

This manga is licensed and available in English.

An anime adaptation was announced in 2011. The anime cast differs from the drama cd cast. The first episode is released on October 29, 2014. The second OVA will be released on November 26, 2014. The third OVA will be released on December 24, 2014 and the fourth and final OVA will be released on January 28, 2014.

!!''Hybrid Child'' presents examples of:

* AdaptationDyeJob: Yuzu originally had brown hair and eyes in Nakamura's older art for Hybrid Child but was later given orange-brown hair and blue eyes to show that he is not a human. In the DVD cover for the second OVA, it seems that Nakamura now gives Yuzu those hair and eye colors.
** Seya had brown eyes in the older official art, he now has purple eyes.
** Tsukishima originally had light gray hair and brown eyes, but the OVA gave him a light brown hair and green eyes.
* BelligerentSexualTension: Kuroda always teased and put down his love interest Tsukishima, to which the latter responded violently.
* BridalCarry: Hazuki carried the sleeping Koutarou this way.
* BrokenBird: Kuroda seems to become this when he loses Tsukishima.
* CannotSpitItOut: Kuroda and Tsukishima clearly loved each other but they never seemed able to express their feelings directly [[spoiler:until their final moments together]].
* ChildhoodFriends: Kuroda, Tsukishima, and Seya have all known each other since youth. Hazuki and Koutarou have been together since their youth as well.
* ChildhoodFriendRomance: Hazuki and Koutarou, Kuroda and Tsukishima.
* DeclarationOfProtection: Kotaro to Hazuki, somewhat Yuzu to Seya, and both Kuroda and Tsukishima to each other (no matter how much they don't want to admit it).
* DownerEnding: Only in Kuroda's story. Kotaro and Yuzu's story both have happy endings.
* FlowerMotif: Cherry blossoms represents short, fleeting life. Tsukishima is equivalent to cherry blossoms since he died young.
** The crimson flowers in Seya's garden most likely represent the blood of the people who died by his hands during the war.
* GoodOldRobot: Kotaro's family often throws Hazuki because hes an older model but Kotaro always finds him, brings him home, and doesn't want a newer model.
* HeroicSacrifice: Tsukishima took the responsibility and committed seppuku to save his clan after they lost the war.
* [[ShesAllGrownUp He's All Grown Up]]: Yuzu wants nothing more than to grow up, he finally does when he starts experiencing more than kindness.
* MagicalRealism: The setting is reminiscent of Meiji era but nothing less than magic can explain the existence of the Hybrid Children.
* MyGreatestFailure: Kuroda seems to view not confessing to Tsukishima properly as this, as he never outright told him how he felt and will never get the chance to because Tsukishima committed [[{{Seppuku}} seppuku]] years before the first one-shot.
* OneHeadTaller: In Shungiku fashion, most couples are at least half a head apart in height; Yuzu at the start of his story is half of Seya, but he seems to be about this far apart from Seya when he ages.
* OnlyOneName: Hazuki and Yuzu only have one name since they are artificially created. Also, we never know what Kuroda and Tsukishima's given names are. Only Kotaro and Seya avert this trope since they are given both a surname and a given name.
* ReplacementGoldfish: The prototype Hybrid Child created by Kuroda looked just like his dead lover. His friend Seya was justifiably disturbed.
* SceneryPorn: With the release of the first OVA, it's safe to say that Studio DEEN really stepped up their game this time. Every scene is beautiful.
* {{Seppuku}}: Tsukishima dies this way.
* ShellShockedVeteran: Seya is tormented by what he saw and did in the war.
* StarcrossedLovers: Kuroda and Tsukishima.
* UnresolvedSexualTension: All the couples really, there's no clear line drawn and the endings are pretty much left open [[spoiler:except Kuroda and Tsukishima at the end of the third oneshot.]]