Why the bug I wrote became a core gameplay mechanic?! - Chapter 19 - This game has another BUG!

Xia Wan entered an ancient Mary Sue campus novel and became a cannon fodder female supporting role who had a marriage contract with the male protagonist F1.
F1 thinks she gets in the way because he likes the heroine.
Because F2 has a crush on the heroine, he thinks she is superfluous.
F3 finds her troublesome because she needs a female lead.
F4…I’m still working as an exchange student abroad, so I won’t be able to play for a while.
In order to avoid becoming a suspect in the future.
On the first day of transferring to this school, Xia Wan stood on the podium and introduced herself, “Hello everyone, I’m Xia Wan’s younger brother!”
*
The system told Xia Wan that there are two ways to live, to gain love or friendship from F4.
Xia Wan chose the latter without hesitation.
On the first day of disguising as a man, Xia Wan gave water to the grumpy F1, and a rainbow fart output touted his skills as a dog.
On the tenth day of disguising as a man, Xia Wan helped the gentle school god F2 avoid his crazy suitors.
Fifteen days when she disguised herself as a man, Xia Wan gave the dandy F3 sincere care and help.
…
When F4 returned to China, he found that the position that should have belonged to him had been replaced by someone.
And his three close brothers fought over who was Xia Wan’s best friend.
F4: ? ? ?
#Our F4 seems to be over#
Xia Wan:OAO
#What do you see me doing? I don’t know anything! #
Thanks for the cover @salt lemon.

【Reading Guide】
No CP in the text, single arrow for all staff, friendship to a happy ending
Fanwai 1v1 has a male protagonist.
For details, see the words in Chapter 1, which can be accepted and read again.

Content tags: Wearing books Women disguised as men
Search keywords: Protagonist: Xia Wan ┃ Supporting role: Who do you love ┃ Others:

- Description from novelbuddy

Shen Yu was sincerely in love. For that person’s sake, Shen Yu ignored his illness-ridden body and plotted to overthrow the tyrant. It was only after Shen Yu died that he learned the truth. He was a character in a book, and the man he loved only viewed him as a stand-in for the protagonist. To pave the way for that couple’s happiness, Shen Yu lost everything.After he was reborn, the sickly Shen Yu was so done with that.As for that man, whoever wanted him could have him.Shen Yu took his half-brother’s place and became the male concubine of the tyrant. The tyrant didn’t like men anyway, and Shen Yu didn’t have much time left. Since he was going to die, he might as well go to the palace to sit around and wait for death.After entering the harem of the tyrant everyone feared, Shen Yu ate and drank without a care in the world.The tyrant, with long black hair on his shoulders and crimson eyes, didn’t hide his hostility. He grabbed Shen Yu by the neck. “You’re not afraid to die?”Shen “Just get it over with” Yu felt a little excited. “Are you going to kill me now?”Tyrant: “? ? ? ? ?”Shen Yu entered the palace expecting to die, but he waited and waited and waited. In the end, the officials petitioned to make him the empress, and the tyrant cured his deadly illness.Shen Yu: “…”Shou: jumps frantically up and down on the gong’s bottom line but never diesGong: all he can do with the shou is lower his bottom line again and again

Jian Wushuang was reborn in adversity. In order to get his revenge, he began to cultivate Heavenly Creation Skill. With the help of the Heaven defying cultivation method, Jian Wushuang gradually grew into a peerless genius from an ordinary practitioner. With a sword in hand, no one is his match. Using his extraordinary Sword Principle, he killed all his opponents and eventually became number one Sword Master from time immemorial.

Su Bei sat on No-Sword Peak, contentedly watching his female disciple scurry about.That would have completed his first task for his System Quest assigned by “The Highest Ten Thousand Fold Feedback for Discipleship” system!Xia Ruoching looked at Su Bei with a serious face,“Master, this is the spiritual fruit I got from the Sect Leader. He said it'd be helpful for your injuries!”Su Bei gazed at the half-black, half-red fruit in front of him and fell into deep thought.“Are you sure this is what the fruit looks like?”“......”“This is the real deal, Master! That half is definitely not poisoned! Eating this spiritual fruit would be such a wonderful experience, ah!”“?”“......”Years later.Su Bei, while leading one of his many disciples back to Sword Sect, suddenly sneezed and muttered,“That's strange. Why do I keep feeling like a bunch of people are cursing me?”The eldest disciple looked at the new junior sisters with a stunned expression, “What? You want to kill Master too?”......The book is also known as “I Have the Highest Ten Thousand Fold Feedback System for Discipleship.”“I Am a Transmigrator, Not the Su Bei You Know!”“I Really Didn't Steal The Disciples' Talents, Okay!”“Assassinations from the Reincarnated Disciples!”“Assassinating Master”