YumeKai

"I've always liked you, Kaidou. But I thought if I told you, it might be a burden for you. There are some things you can't say even if you trust and loved them"

- Chiyo to Kaidou

YumeKai is the het ship between Kaidou Shun and Yumehara Chiyo from the The Disastrous Life of Saiki K. fandom.

Canon
At first, Yumehara was in love with Saiki, but it was disappearing by the time because Saiki was doing everything to avoid her. When Yumehara finally gave up on him, she found another guy, which she fell in love rapidly and became boyfriend and girlfriend. By the time, that love faded apart again, since that guy was really rude with some people, his way to eat was disgusting and he always used the same phrase to her that was already making her go mad: "I'll the umbrella that protects your heart". By the time, she was all alone again.

Beach Episode
When they went to the beach, Yumehara was in her bath suit, but suddenly she felt sad since nobody was paying attention to her. Kaidou noticed her, and told her she was looking good. Moments later, three guys started flirting with Teruhashi, and this made her feel uncomfortable. Yumehara angrily stepped in front of her and defended her. The guys started making fun of Yumehara's body making her feel really bad, making Kaidou go mad. He, angrily, tried to punch one of them, but since he is too weak, it didn't hurt the guy at all. Saiki used his powers to make that guy believe it did hurt, and the 3 guys ran away. Yumehara thought It was thanks to Kaidou, so she thanked and fell in love with him.

Episodes later, Yumehara is seen that she gained a lot of weight, in which Teruhashi and Mera didn't want to tell her that she looked pretty bad. After school, Saiki saw her trying to do push ups, but since she was too fat she didn't had enough strength to even do 5. Saiki talked to her via telepathy using Kaidou's voice, so she could get an inspiration. Hours passed and Saiki noticed she still doing push-ups. The next day, Yumehara was back to her normal form again. In the halls, she met up with Kaidou and he asked her a little favor, in which she bows and told him she will always accept.

Valentine's Day
Yumehara made a letter and a chocolate cookie for Kaidou and put it under his desk, but Nendo ate the cookie because he saw it. Kaidou saw the letter, and went to Yumehara to say thanks. After school, they went out on a "date" talking about the letter, until they sat on a bank and Kaidou told her there was no cookie in his desk. Yumehara felt shocked, and at the end she told him they are best as friends. Kaidou was a little disappointed, but still said thanks for the little present. After Kaidou left, Yumehara felt really bad, but then smiled because she knew she could get closer to him. Both were really nervous during the entire "date". Meanwhile they were walking, Saiki was watching and making sure nothing goes wrong, and then he implied they should forget the cookie ad get married.

Castaways / Ship Sink Arc
During this episodes, Saiki's friends were trapped in an dessert island. There were many times where Yumehara wanted to be with Kaidou and occasionally hugged him. Also it was revealed that meanwhile Kaidou was sick in the ship, she threw the pills to the sea so she could be there taking care of Kaidou, but then Saiki got sick and she played dumb like she didn't knew about the pills.

Fanon
It's a quite popular ship inside the community, only rivaled by KuboKai and KaiSai. It's the most popular het ship between these two, but third most popular ship with Kaidou. It's mostly shipped since Yumehara is completely in love with him and hasn't gave up like he did with Saiki or his ex, and Kaidou is always nervious around girls, but specially with Teruhashi and Chiyo.

This ship started sailing in the beach episode after Kaidou stood for Yumehara, and since then Chiyo fell in love with him and tried her best so he would notice her..

Fandom
TUMBLR

WIKIS
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Trivia

 * It's already confirmed that Yumehara has terrible luck with love and change crushes constantly as well as Kaidou, but when Aiura told her to "give up to your actual crush" (in that moment was Kaidou) she didn't.
 * She did gave up with Saiki and her ex.
 * It's shown that Kaidou is really shy when it comes to girls, specially with Yumehara and Teruhashi.
 * Yumehara prepared Kaidou a letter and a cookie for Valentine's Day for him.
 * Kaidou didn't find the cookie, but he told Yumehara not to worry, since he was satisfied with the card.
 * Kaidou's name is derived from the Japanese term for Teleportation, while Chiyo's name is from the word Prophetic Dreams.