The moment he opens the door, the infected in the room react instantly and attacks them, "there are only 16, concentrate and aim at the head of the first one that come to you and you attack direclty the next one, and at the same time be careful at your back" said muzan taking his baseball bat and rush into the group directly
Bam! Bam! in two shots muzan explode the head of two infected and he continues without stopping he dodges and hits with a strong blow in the head and goes directly to the next one and at the same time uses the environment so as not to be surrounded
Seeing how muzan is at ease song lan is shocked but she does not have time to observe properly, 2 infected come to her she watche them seriously wait for the good moment to come and strikes with the metal bar with a single blow she and smashe the skull of the infected
song lan is shocked by her current power she knows very well that before it was impossible for her to do something like that, then she remember of the liquid she drank and know it was this thing that increase her strength
suddenly she feels a danger coming to the right of her she dodge by instinct and hit in the head of the infected!
seeing how much she is better physically song lan is better in her heart she clench her teeth and attack other infected
Muzan observing Song Lan with an eye is a little surprised by her quick adaptation .. "talented and courageous I came across a little pearl" he said exploding the head of another infected
a few minutes later, there is just muzan and song lan in the room at this moment song lan is sitting on a chair and still not realize what she just did so easily
"A cigarette?" said muzan putting the package in front of her
"Hm .. thank you" she take a cigarette and put it in her mouth, muzan approache her with the lighter and light her cigarette
after a moment of silence song lan speak: "Muzan ... they were normal people before ... is it normal that I don't really feel guilt after killing them?" said song lan with a low voice
Muzan smile sit next to her close and said"I don't know if it's normal, but what I do know is that if you don't kill them, they will and you will be like them too, so you just defend yourself and don't think about anything else "
Song lan looks at the bodies of the girl and boy students for a moment, closes her eyes sigh and stands up: "muzan, we go do the other class room now?"
"Wait first we have to take this little crystal in the body, I show it to you how to do it"
Muzan approached the infected body open his chest with his knife perfectly and remove the crystal calmly, all under the attention of song lan who seriously watches muzan's action
"Not too disgusted?" said muzan funny
"Hey boy, I remind you that I am a doctor and I have already attended of body openings
so its not to bad for me, and I understood for the crystal give me the knife I do it on the other infected bodies "
"Good, take it" muzan throws the knife for her and lights another cigarette while song lan began to remove the crystals one by one
a moment later 15 green crystal is laying on a table
"What are there crystals for?" asks song lan curiously
"It helps us to evolve" said muzan calmly
But this sentence shocks song lan next to him "Evolve ?! how ?!"
"Yes, its strengthens our body, by taking 30 crystals you can evolve into Tier1 and you surpass the strongest normal human by becoming a Tier1"
Listening to what muzan say song lan is completely shocked and her heart start to beat fast, after all if this is true it is a revolution for humans!
"I told you that I would have a surprise for you if you kill 10 infected it's still valid" said muzan with a smile
Song lan stared at muzan for a moment and wanted to ask him how he knows all this, but finally she was silent because she knows that muzan will not tell her anything after all everyone have a secrets like her.
"Well I have enough crystal to advance to tier 1, wait for me outside for a while and if there's a problem just come inside" said muzan taking the crystals from his bag and placing them on the table
"Hm" she left the room but at the same time glanced at muzan before leaving
"This girl is really surpassing my expectations" said muzan putting his hand above the crystals then closed his eyes and the energy of the crystals started to come out and enter muzan's body
Muzan feels an immense amount of energy entering his body and make him comfortable .. 10 minutes later muzan hear something broken in his body he opens his eyes and takes a deep breath
"Finally Tier 1! I'm going to be able to use spiritual energy and I won't get tired just by fighting with some infected" said muzan, hitting a table with his fist and the table shatter straight away.
Satisfied, muzan leave the room
When he leaves the room he sees song lan sitting against the wall staring at a body in front of her as if she was immersed in something she doesn't even hear muzan coming
"Song lan?"
Hearing muzan's voice she wake up hurriedly and look at muzan strangely
"Muzan ... there is something in my body that want to wake up ... but I don't know what it is ... it's strange"
Listening to what song lan said muzan is confused but just a moment later his eyes shines!
"Is she going to wake up her constitution?"