Adding this one for obvious reasons, the MC and the system are always gossiping lol, they are like a pair of besties.

here’s a snippet of their dynamic.... more>>

But how to sneak into the truck? She was a little worried.

[Stun them?]

Although she didn’t understand what she was going to do, the system still came up with bad ideas without distraction.

Chi Ying nodded suddenly, “That’s it!”

System:! ! !

[I just said it casually, if anyone was really stunned, someone will definitely investigate tomorrow…]

Chi Ying had no choice but to give up with regret. <<less

I read this one years ago (and it was MTL) so take this one with a grain of salt, IIRC she basically grew up with... more>> the system so there’s that closeness of a parental figure, I’m not sure if the system was particularly funny but it was at least kind of memorable. <<less

Ok this system isn’t as funny, it starts out as a regular cold system that ends up developing a cheeky personality. It’s presence isn’t as... more>> big as other systems in this list though but at least it has a system with personality and is I guess a companion. <<less

Tbh I just started it bc it’s from the same author as the 1st novel on this list which seems fun. ... more>>

Idk if this is a spoiler but here’s a snippet of their eventual interactions (bc as a supporting character system ofc it starts out as a system that tries to make the MC follow that role) :

Initially, the system would constantly nag about tasks, reminding her the time regularly, being diligent and dedicated. Until one time, watching Sheng Xia playing a shooting game without noticing an enemy aiming at her, the system couldn’t help but nervously interject: “Host, host, at your three o’clock direction, there’s an enemy ambush, be careful!”

—Bang!

Sheng Xia casually returned fire, directly eliminating the enemy. The cool and handsome posture made even the usually restrained and polite system couldn’t contain its excitement and bounced a bit.

Ah, ah, ah, the host won! That’s so cool!

“System, you’re amazing. With you around, I really feel super safe!”

“System, quickly check if there’s anything else to be aware of?”

“Awesome, System! Our teamwork is indeed the best!”

So, amidst Sheng Xia’s sweet words like “System” on the left and “System” on the right, the system was dizzy and inexplicably immersed in the wonderful gaming world together with the host. <<less

The description itself says "2. The system’s role is quite significant, and its comedic function is somewhat like that of a roast master." sooo you... more>> know it's true lol, lowkey that's the reason why I started this novel and it was a great decision because I've been enjoying it a lot. <<less

The system’s dialogue makes me laugh, well the novel in general is pretty funny including the system. 

I am unsure if I should include this one… this isn’t your typical system since it takes shape of the FL’s mom and is basically... more>> the main character along the FL. It’s also not really a comedy but it has funny moments and the system definitely has presence. It’s really a unique novel imo, the system isn’t like your typical mom character since she’s a system but she’s also not like a system since she becomes the FL’s mom and makes friends and everything, it’s just a great combination that makes a good childcare novel. <<less

I’m still reading it, the system doesn’t that have that big of a presence imo but it has its amusing moments, here’s an excerpt:... more>>

She really was fine, it’s just that regarding her street vending, there was a System. Fortunately, the System was quite humane, not only did it not blame Sun Miao for not properly manning her stall to go to the police station, but it also joined her in righteous indignation, cursing at Xu Ding, that ridiculous man, in Sun Miao’s mind.

The System was quite noisy, still cursing the ridiculous man: 【I will curse him! As a System, when I curse him, he’s going to be miserable, he’ll have nothing but bad luck in the coming days!】

On one hand, Sun Miao thought that as a System, it should indeed have some capabilities, but then she remembered that after binding with the System, she could only afford to live in a rental apartment with a monthly rent of 600 yuan, so she figured it was probably just all talk. <<less

This system is quite chatty and funny. Here’s an excerpt... more>>

As she got in, Dong Ling thought to herself that she could drive this car to discuss resources in the future, so others wouldn’t know she actually didn’t have much personal money.

021: [Girl, you’re amazing. You haven’t even become a sugar daddy yet, but you already have the awareness of one. I’m proud of you!]

Dong Ling was shocked: [You’re peeking into my thoughts!]

021 loudly retorted: [Don’t falsely accuse the system! You were clearly thinking super loudly, it was hard for me not to hear!] <<less

The system is basically like one of the main characters too, it's too chatty, it loves melons, it helps the MC and yeahhh it's great, it makes this story so much more fun. Here's the snippet of how it starts, then it eventually starts becoming more useful.... more>>

The orb bounced around in Yan Xi's mind: [You're half right! I am indeed a system~]

[But I'm a background character system, I can only chat with you and have no other functions~]

Yan Xi: ?"Then what use are you!"

[...][I can chat][I can surf the internet and gossip with you][I can be your MP3 player] <<less

The system is so funny lmaooo, this novel was great, the system is supposedly a melon system but it actually has a lot of info... more>> of the world including techniques, etc. It's very chatty, loves shipping the FL with the ML, hyping them up as the most talented people, finding and telling the MC melons, etc. It's supposedly a mind reading melon novel but it has its plot, it's pretty good and I think this was of the most memorable systems to me.  <<less