Toaru Majutsu no Index SS: Kanzaki - Chapter 1: The Whereabouts of the Restraints. GLEIPNIR.

A skilled thief gets a system in an Alternate Wizarding World. The system seems useless in the beginning since he hasn’t unlocked any features. But…

[The very first feature of the System has been unlocked.]

[Congratulations. You’ve unlocked the class feature. Due to your existing skills and experience, you have gained the Special Class "Arcane Thief" as your starting class. There’s nothing an Arcane Thief can’t steal. The more you steal, the more your Class will progress.]

[The fields of expertise include:

— Stealth Magic
— Wards
— Traps
— Enchantment
— Pickpocketing
— Knife/Short-Sword Wielding]

Wait…this is just the first feature?

Dying after getting bitten by a zombie, the main character finds himself in the world of fantasy.Reincarnating as the mid-rank villain, he decided to live differently and avoid the main cast. After all who would like to live as an arrogant brat only to die like a dog?However, just as he resolved to live a better life,[Ding!][This world is not the same as the host knows. Because of the tragic ends, the God of Fortune has reversed the time and has allowed the main heroines to retain their memories.]Yeah, he is done for.******Additional tags: Possessive characters, no Yaoi, no Yuri, no ntr.

Science and Technology Library: The supreme state of science is theology; an accidental rescue, let Chen Mo get a technology library that collects endless technology, the story begins…

- Description from xbiquge translation

Introduction to One Piece’s Bounty System: Tianlei crossed the One Piece World and become the nephew of the Navy Admiral ‘Sakazuki, ‘Akainu’, Tian Lei thought it was very outrageous until he found himself having a [bounty system] that can be exchanged for everything in the world of One Piece. As long as you kill or capture pirates, you can draw a Skills, weapons, and devil fruits. Such as ‘Navy Six-style’ ‘Overlord color Haki (Busoshoku Haki)’ ‘sense color Haki (Kenbunshoku Haki) ”armed color Haki’ ‘devil fruit’ ‘sword skills’ have everything!

- Description from Novelupdates