Look back at "Galaxy Beauty Boy". The relationship between the three protagonists is very interesting. First, let's introduce the three protagonists.
Male lord, red hair. "Brainless" characters. Sunny, cheerful, active and infectious. It is also the main combat force of the decent faction in this game. We can use the word "warrior" to represent him.

Heroine, yellow hair. No, it should be orange hair. Although it is also "brainless", compared to the male protagonist, it is more introverted. It is a girl who does not have a big grin, but makes people feel good. Holding the position of witch on the island has some special powers, but it has not yet been solved. He is also the core character in the love triangle, and offers his first kiss at the beginning of the anime to rescue the "warrior". We can refer to her as "witch" for the time being.
Male two, blue hair. "Unhappy" characters. Calm, mature, reserved, gentlemanly. And the male protagonist is simply the opposite of a person. On the island there is a prominent family business and inexplicable responsibilities. It has a powerful force that has not yet been unsealed. In the plot, the male second is called "king". In addition, the male second and female protagonists are still young plum bamboo horses who grew up together.
After introducing the three protagonists, we can start the theme. The love triangle of "Galaxy Beauty Boy" mainly revolves around these three people.
Before the story begins, before the Warrior has landed on the island. Let's think of the relationship between the "king" and the "witch".
Because the power of the "king" and the power of the four "witches" are dangerous. So in order to prevent dangerous proliferation, these forces are confined to such islands. The family of the "king" and the family of the four "witches" negotiated intermarriage.
In other words, the second male was married as a "king" and the female protagonist as a "witch". It is a green plum bamboo horse, and it is an unmarried couple. The relationship between the "king" and the "witch" became somewhat chaotic. The two parties do not know in what capacity to face each other. The most important point is whether the two really like each other.
However, because of these two layers of identity. Neither the "king" nor the "witch" wanted to unravel the veil of the problem. The problem was delayed until the male protagonist came to the island.
For the "king" and "witch" in an awkward relationship. The arrival of the "warrior" became a breakthrough. Because all along, the "king's" superficial attitude towards the "witch" was limited to the bondage of the marriage contract relationship. And with the arrival of the "warrior". The "king's" attitude towards the "witch" also gradually became clear.
Similarly, the "witch" is in this awkward and delicate relationship. Because of the arrival of the "warrior", he became aware of and re-examined his feelings for the two.
On the surface, this is just the old story of the Qingmei Bamboo Horse War Heavenly Descent System. To put it more vulgarly, it is the original match and the little three who snatched the position of the main palace.
But in fact, in the story of "Galactic Beauty Boy", it is a complementary process. As the saying goes, it doesn't break or stand. Because the arrival of the "warrior" will break the relationship between the "king" and the "witch" in a delicate position, and then promote the "king" and the "witch" to re-examine the tripartite relationship.
And the lonely "warrior" has also become dependent and has faith because of the integration into the circle of "kings" and "witches".
Look at the animation of "Galaxy Beauty Boy". Many anime love triangles revolve around the Ome Bamboo Horse Vs. Skyfall system.
Among them, most of the endings are the winners of the Heavenly Descent System. I personally believe that the reason why the young plum bamboo horse cannot win is that in an environment without the threat of emotional enemies, it is addicted to the stability of existing relationships. And it's also a negative maintenance. For example, the relationship between the two has become friends. But I didn't want to develop further, or because I was afraid of confessing failure, causing embarrassment when I met on weekdays, but fortunately I have maintained this relationship.
After the characters of the descending system become love enemies, the descending system and the protagonist through too much contact and communication, coupled with the freshness, it is easy to grab more good feelings than the green plum bamboo horse.
After encountering such a crisis, Qingmei Bamboo Horse lacked the means to cope with and respond to the situation. So that they are often at a disadvantage, and finally when they really understand their feelings and want the protagonist to pass them on, they often reach the point of exhaustion.
Therefore, the so-called love triangle is actually a test of the character's ability to handle interpersonal relationships. This test involves both courage and mind, and more importantly, your own understanding and opinion of the other party, and most importantly, forcing you to make a choice.
This also leads to a lot of love triangle stories, always make people feel particularly stomachache.