As it suggests, the love interests of the protagonist have to be younger than the protagonist. However, it is only used when the age difference is quite significant, and either the physical/mental aspects of this difference gets some screen time.
Hao Ren, an ordinary university student, saved a little girl who fell from the sky. By accident, he swallowed a “candy” that fell off of that girl’s body and somehow became the Dragon King’s son-in-law…… His life was turned upside-down from that point on. There were dragons in this world? And they are living side-by-side with humans? Ancient Chinese Mythologies really happened? Hao Ren got to experience a new world that was hidden from ordinary humans. Despite the thrills that came with the new discovery, there were challenges along the way. He thought his easy life as the Dragon King’s son-in-law was going to be laid back, but conspiracies and undercurrents were coming his way.
After his transmigration to the cultivation world, Shen Tian discovers that he can see the fortuitous opportunities and their providence haloes of others. In order to rub off some of the luck from these opportune characters, Shen Tian proactively gets close to them. … Eventually, everyone realizes that no matter who it was, as long as they hang out with Shen Tian, they will gain lots of fortuitous opportunities! And there’s no exception to this rule! From then on, Shen Tian was labelled as the most popular lucky mascot in the cultivation world! Fairy Qing Yue: “I once followed my Senior Brother to the Kunlun Secret Realm in the West, and obtained the Sun And Moon Orb!” Princess Ling Long: “I once followed my Senior Brother to the Imperial Burial Valley in the Northern Sea, and both of us inherited skills from Emperor Dan!” Immortal Phoenix Queen: “Haha, what a bunch of fledglings! Do you know how he got his Dragon-Phoenix Immortal Form?”
After being reborn in the ancient times before the Great God-Conferment War, Li Changshou becomes a minor cultivator. He is neither destined for great things nor great woe. His only dream is to live a long life as a cultivator. In order to survive in the cruel Primordial Times, Li Changshou tries hard not to accumulate any karma—killing inevitably leads to feuds. Thus, he always plans thoroughly before doing anything and never allows himself to walk into dangerous situations. He hides his trump cards well, trains himself in escape techniques, refines poisonous pills, and masters his mystical abilities. Before making any moves, he takes on an extremely steady demeanor. Yet, every move of his ends up earth-shattering. Once he is done, he will disappear without a trace. Li Changshou originally plans to remain hidden and safe in the mountain. There, he is supposed to cultivate until he ascends to immortality. However, everything changed one year when his master seems to think that their lives are too peaceful… He takes in a junior sister…
At the age of 15, He Jin found himself a “husband” in an online game, their love was filled with loving affection and sweetness. However, because his study was being interfered with, his parent cut off the internet, he didn’t even have a chance to say goodbye and had to disappear from the game. 8 years later, the online game in the past was about to come out with a revised edition and turned into a virtual reality game. He Jin decided to login again and unexpectedly discovered that his “husband” had become a powerful player and ranked number one in the whole server, moreover, he had not divorced him! However, the husband that was abandoned by He Jin for eight years, his initial impression of him was that of a pure boy, but now he seemed to somehow have become…….a little evil?