The characters you know can change their voice.
You already know か・き・く・け・こ. Add one tiny mark — ゛ — and five familiar characters begin making five new sounds. Your basic Hiragana are complete. Now Japanese begins expanding them: familiar shapes gain new voices through a small mark you will see constantly in real words.

One small mark. Five new sounds.
The two small marks ゛ are called dakuten · 濁点(だくてん). They mark a voiced consonant. In this row, the K sound becomes G: か → が, き → ぎ, く → ぐ, け → げ, こ → ご. You are not learning a new alphabet — you are extending kana you already know.
Feel the difference.
Place your fingers lightly on your throat and compare か with が. With が, you should notice vibration from the vocal folds. That physical contrast is a useful first way to feel what “voiced” means.
Listen before you memorise.
Keep the familiar shape in your mind and notice the new sound. The dakuten marks are small, but they change what you hear.
Hear the complete row together.
Write what you already know — then add the voice.
Select a character. Play the stroke order once. Notice how the familiar base kana is completed with the dakuten marks.
Five sounds immediately enter real words.
Try the Japanese first. Romanisation is still here as support, but your eyes should begin trusting hiragana before English letters.
key
afternoon / p.m.
English language
rice / meal
well · energetic
student

A tiny sound change creates a useful everyday word.
A key is かぎ. You already know か and き. The second character simply gains dakuten: き → ぎ. This is the important shift after 46/46: you are no longer memorising a new writing system from zero. You are learning how the system expands.
Japanese often places the action at the end.
The sentence patterns from earlier lessons continue working while your reading power grows. New sounds do not mean new grammar every time.
I eat a meal / I eat rice.
I study English.

One word can carry more than one everyday meaning.
ごはん can mean cooked rice. In ordinary conversation, it can also refer more broadly to a meal. Context tells you which meaning is intended. Useful Japanese is learned through situations, not isolated dictionary labels.

“How are you?” is not a script you must use every time.
This is useful Japanese and can ask about someone’s wellbeing. But Japanese conversation does not mechanically copy the English habit of saying “How are you?” at every meeting. Relationship, situation and how long it has been since you met all matter.
A simple answer: “Yes, I’m well.” Learn the phrase — and also learn when it feels natural.
New sounds join language you already know.

Find the voiced sound in ordinary life.
Imagine entering this everyday setting. Your mission is not to translate everything. First, notice what you can already recognise.
Mission habit: recognise first → sound it out → then ask what it means.
Train your ear, not only your eyes.
Careful → natural
Hear おげんきですか carefully, then naturally.
Listen & choose
Which word did you hear?
Retrieve from sound
Listen first. Can you recognise the words?
ごはん · げんき
Your 46 basic hiragana remain complete — and five new sounds now sit on top of them.
The highlighted cards are not characters 47–51. They are additional voiced sounds created from familiar kana.
I can recognise the first voiced hiragana row.
Basic Hiragana
Additional Sounds Unlocked
The same idea moves to the S-row.
Chapter 2 continues: familiar shapes, new voices.