This is the 5540th most frequent Japanese word.
かくして
"Thus" or "thereby."
In this sentence, "かくして" is used to indicate the consequence or result of the preceding action (努力して - worked hard). It connects the effort with its outcome, demonstrating its logical progression.
彼は努力して、かくして優秀な成績を手に入れた。
He worked hard, and thus he achieved excellent grades.
Here, "かくして" connects the progress of time to the beginning of a new era, portraying it as a progression or continuation of events.
時は流れ、かくして新しい時代が幕を開けた。
Time passed, and thus a new era began.
In this example, "かくして" marks the conclusion of the story, presenting the ending as a natural outcome following the events of the adventure.