Let's Get to Villainessin': Stratagems of a Former Commoner Vol.2

The Second-rate Villainess Has Become A First-rate Tsundere!
Despite Mio’s best efforts to be heinous and despicable, she just can’t seem to erode the unwavering trust of her peers, who consistently see through her facade to the sincere intentions beneath. At this rate, her sister’s life hangs precariously in the balance. But it’s early days yet in her three-year-long villainistic venture. As the school year unfolds, the school sports day offers Mio a prime opportunity to finally shatter her friends’ trust: a devious plan with her new accomplices, Sayaka and Asuka. Will she succeed in becoming universally despised, or will her plans once again unravel in a most unexpected and heartwarming way?

[From Cross Infinite World]