There are few things I would like you to read...
WARNING SYSTEM- In auxiliary or volume 0, I will introduce new characters Introduced in a particular volume and it is recommended you to get the details of characters when you complete that particular volume to avoid some spoilers of characters. For example, I have uploaded a character introduction (volume 1) where you will find characters that might be unknown to you if you don't read the volume 1 and as a result it may be a spoiler for you. So to avoid that, read the volume first and then access the character introduction chapter of any particular volume...
CHARACTER INTRODUCTION SYSTEM-
Characters will be introduced after every volume (for example, if volume 2 is completed then the character introduction chapter of volume 2 will be uploaded in the auxiliary volume), only if the character is alive until the end of any particular volume... NPC like characters who don't have much important roles will not be introduced however, if any of the ordinary character becomes useful or have huge role in future volumes (let's volume 3) then their character introduction will appear of that volume (volume 3 as an example). It is necessary to hide something characters to avoid the spoilers... If any character is resurrected in later volumes then they will, ofcourse, be introduced if they haven't been introduced before according the particular volume where they were resurrected or somehow managed to be stay alive.
CHARACTER UPDATE SYSTEM-
There are some following points below to explain this system...
1) If the characters status changes (let's say their weapon for example) then they will not be re- introduced again in any upcoming chapter but instead there status will be updated on the existing chapter where they were previously introduced. For example Character X's weapon was different in volume 1 introduction chapter (auxiliary) and his weapon changed in volume 7 then the character X's weapon will change in that existing chapter volume 1 introduction. So basically, it is recommended to look at the previous character introduction chapters in auxiliary volume so that you could notice some differences in the character status.
2) You might notice that the characters who were introduced in an auxiliary volume in a chapter, their status will be shown alive on the Chapter title (for example look at the title of first chapter in this auxiliary volume where the status is alive). You will see this in every new character introductions of the chapter but please note that, the characters status alive will be only valid to that particular volume where they were introduced. For example, let's say the character X is alive in volume 1 and he was introduced in the chapter that introduce the character in the chapter (auxiliary) of that volume 1 since his status is alive. However, in volume 2, 3 and other next volumes, if the Character X is dead then still the chapter of volume 1 that introduced the Character X will only be alive and in that particular volume 1 and after that there will be no guarantee whether the character X will survive or simply die...
This system is created to avoid spoilers and at the same time to see the introduced characters or see the existing character updates if you wish to see. In every character introduction chapters in auxiliary volume, you will be given warning so that you don't accidentally read it to avoid spoilers.
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If any new things comes up (notification) then I will update in this chapter so it is recommended to read it again whenever you you feel like it...