Double/Hidden Identities

Murderer takes on new identity to hide

ML takes on new identity due to being suspected as a serial killer

ML pretends to be lost brother of FL

ML pretends to be lost brother of FL

FL new identity for revenge

FL is a frumpy housewife & after perfume use a model

FL as an overweight female & after potion use a beauty

ML pretends to be reporter for info on his past

ML renamed after being taken in by an old man after being found in water

FL mom impersonates a HS student @ daughters school

ML creates another version of himself (less rich, more naïve, & very approachable)

ML2 enters palace under fake name to be bodyguard to find info on mother's death

FL ages herself by 40 years by rewinding watch too many times

ML hiding his identity

ML Devil & judge

FL creates a new version of herself w/ a new name.

ML, an immortal, changes his identity as time passes

FL princess & commoner

FL wears a mask to hide identity

FL Human & snake

FL HS student & assassin

Hidden identity

Hides identity

Hidden identity

Different names for different segments of her life

ML takes FL's brother's name/life

ML Multiple Personality Disorder

ML Split personality

ML Split personality

FL - split personality

ML2 - DID

Gang member & police officer

FL2 takes her mom's name (ML keeps his name even in past)

FL - brother gives her a new name

Hidden identity

FL - matchmaker/peddler & noble family widower

ML - prince/ nickname the resentful man

FS - female writer w/ pen name

FL - her older self & Alice (younger self's cousin in America)

FL - ML's sister & her disguised self

ML - uses new name/idenity to hide from killers

FL - takes on dead princess's identity to find/avenge her killer

FL turns into pretty girl daily

ML2 - new name to cover up his past

FL - uses fake name to infiltrate Mom's ex-employer home/business

ML hides his Dr. Climax identity

ML - Idol disguised as a nerdy music student

FL - Princess but tells ML a maid & others her older sister

ML - Prince but tells FL the Prince's guard

FL - 2 personalities

ML - 2 names

FL - old woman & herself

ML5 - takes another's name to take civil service exam / get a position

FL pretends to be servant to avoid association w/her dad
ML lies about who he is to FL to avoid being seen as crown prince

ML - long lost dead son & long lost dead son's childhood friend

ML - son born out wedlock from CEO & convenience store worker
Support Female - Racy love writer & FL's sister

FL pretends to be cousin so her dad & others don't know she is from future.

ML - his own name & his pen name (book author)

ML hides his job as a contract killer cleaner & FL hides that she is a drug gang member

ML -hidden identity (former orphan)
FL -hidden identity (406)
ML's assistant -new name to get close to ML

ML - stolen boy & fake commander

Daughter & father hide that they are family

ML takes on BFs name to earn $ outside his civil servant job as a fireman.

ML - hides his 1/2 brother status for revenge

FL - Rong Yan & Princess GeGe
ML - caged boy / adopted son of villain

FL - disguised as 3 non-real people

All the characters

ML - Black Dragon 

ML - student & NCIS agent

FL - Penny the designer & ML's unknown wife

Maiki - 3 names

FL - swindler w/fake identity

ML - priest who is warrior general

FL2 - human princess & demon/devil's daughter

FL - changed her face + name after BF stabbed her & set her on fire

ML - using a person's identity

ML - posing as lost son, but really an assassin seeking revenge on behalf of the woman who adopted him.

Story #3 - FL - fakes being a blind person & hides her job (Youtuber)

ML steals bad boy's identity to avoid bullying at new school

ML - mortal & ancient god
FL daughter of mortal & a famous phoenix demon

FL - changes her name to avoid people knowing her former childhood actress life

ML - Qin Lie & Gongmu Lie
FL - Ling Yu Shi & Mother Earth
FL2 - Song Ting Yu & Ye Xian Er (Night Fairy)
FL3 - Xie Jing Xaun & Tang Si Qi
ML2 - Du Shao Yang - Dagger
ML's BF - Hua Yu Xin & Yi Yuan
FL's sister - Ling Xuan Xuan & Pan Qian Qian

ML - takes his friends job/name as a bodyguard to get close to his perceived enemy

FL - pretends to be mentally disabled

ML - demon hunter & FL cat demon lord

ML - pretends to be Joon (older bro) in younger bro's body for FL
         - Black is really Joon

SuppF - Dr that changes her name to hide from prostitution past

ML - hides his Yakuza ties/right to become next leader

FL - Ming Yi & lives disguised as male warrior/crown prince/Ming Xian
SupportM - Situ Ling hiding from his past as Chao Yuan

ML - CEO & Nightclub toy boy

FL - Ghost

FL - Ghost

FL - pretends to be married w/6 yr old kid

2 ML's pretend to be kung fu trainees but want to steal stone

ML - Alien

FL takes on multiple people's names

FL hides she is a thief

ML hides that he is a prince

ML - Reincarnations when he is Bandit & Assassin
FL - When a Ghoul

FL - FSS Agent 35 yrs old & 20 yr old securities co assistant