Particle Ni （に）can use to specify a target of verb, it is different with particle O (を) which the verb does something to direct object. For example the target of any motion verb is specified by NI particle.
Tips after place adverb it often use ni particle.
1. 先週彼女と日本に行った。
Sensyu kanojo to nihon ni itta
I went to japan with my girl friend last week.
2. 工場に行く。
Koujou ni iku
I go to factory
3. 家にくる
Ie ni kuru
Come to home.
In example number 3, the target particle always targets "to" rather than "from" if we want to say "come from" we can use "kara"
4. ジョンは、中国からきた。
Jon ha, chugoku kara kita.
Jon came from china.
If "kara" paired with "made" it means "up to"
5. 8 .00から15.00まで 仕事する。
8.00 kara 15.00 made shigoto suru.
I work From 8.00 until 15.00
Tips after place adverb it often use ni particle.
1. 先週彼女と日本に行った。
Sensyu kanojo to nihon ni itta
I went to japan with my girl friend last week.
2. 工場に行く。
Koujou ni iku
I go to factory
3. 家にくる
Ie ni kuru
Come to home.
In example number 3, the target particle always targets "to" rather than "from" if we want to say "come from" we can use "kara"
4. ジョンは、中国からきた。
Jon ha, chugoku kara kita.
Jon came from china.
If "kara" paired with "made" it means "up to"
5. 8 .00から15.00まで 仕事する。
8.00 kara 15.00 made shigoto suru.
I work From 8.00 until 15.00