This story is truly great. The only issue i have is that the world building isn't completely fleshed out yet. It does however show a lot of potential. The only real problem i have is that the MC's character isn't that good in the beginning. This however turned into great character development. If you are planning on dropping this due to the MC's actions and thoughts try to read until Chapter 20 as it is a major turning point for the character.
Anime & Comics · I_S_Rift
No big issues with the grammatical side. The biggest demerit is the very slow update speed. However the length of each chapter makes up for this. Great Story.
Video Games · OtakuWeibo
เนื้อหาลามกอนาจาร เกลียดชังหรือกลั่นแกล้ง การเปิดเผยข้อมูลส่วนบุคคล ความรุนแรง สแปม อื่น
Webnovel 
This story is truly great. The only issue i have is that the world building isn't completely fleshed out yet. It does however show a lot of potential. The only real problem i have is that the MC's character isn't that good in the beginning. This however turned into great character development. If you are planning on dropping this due to the MC's actions and thoughts try to read until Chapter 20 as it is a major turning point for the character.
All-Powerful : Summoning System
Anime & Comics · I_S_Rift